Answer: True
Explanation:
TRUE or FALSE. archaeal and bacterial cells use chloroplasts for the process of photosynthesis.
False. Archaeal and bacterial cells do not use chloroplasts for the process of photosynthesis. Chloroplasts are organelles found in plant cells and some protists that are specialized for photosynthesis.
Archaeal and bacterial cells have different organelles or no organelles for photosynthesis. Archaeal cells may contain pigments similar to chlorophyll for photosynthesis, but these pigments are not located in organelles like chloroplasts. Bacterial cells have a variety of pigment-containing organelles for photosynthesis, including chlorophyll, bacteriochlorophyll, and others. However, these organelles are not chloroplasts. The distinction between chloroplasts and other photosynthetic organelles is important for understanding the evolution of photosynthesis and the diversity of life on Earth.
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If one million kilocalories of energy are stored in producers in an ecosystem, how many kilocalories can be transferred to tertiary consumers in the ecosystem?.
The energy transferred to the tertiary consumer would be 1,000 kilocalories (10,000 x 10%).
The energy move from makers to tertiary shoppers in view of the explanation that just 10% of the energy put away in life forms at one trophic level is moved to creatures at the following trophic level:
1 million kilocalories (put away in makers)
Primary shopper: 1 million x 10% = 100,000 kilocalories
Secondary buyer: 100,000 x 10% = 10,000 kilocalories
Tertiary shopper: 10,000 x 10% = 1,000 kilocalories
At the point when energy is missed the natural pecking order, just around 10% of the energy put away in one trophic level is really moved to the following. Assuming 1 million kilocalories of energy are put away in makers, the energy that would be moved to the essential buyer would be 100,000 kilocalories (determined by duplicating the energy put away in makers by 10%). Then, the energy moved to the auxiliary purchaser would be 10,000 kilocalories (determined by duplicating the energy moved to the essential customer by 10%). Lastly, the energy moved to the tertiary shopper would be 1,000 kilocalories (determined by duplicating the energy moved to the optional customer by 10%).
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viruses do not respond to stimuli
The statement Viruses do not respond to stimuli is true because they are entities incapable of responding to environmental factors.
What are the features of viruses?The features of viruses include they require a host cell to replicate, cannot carry out their metabolic functions and they do not react to environmental cues such as occurs with other organisms, given bacteria capable of surviving indefinitely in absence of hosts or any other type of organism.
Therefore, with this data, we can see that viruses need a host cell to replicate and they cannot carry out metabolic activities.
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why do we call it cellular respiration
In Cellular Respiration, Glucose is converted into usable energy (ATP) by consuming O2 and releasing CO2.
Cellular respiration occurs in the cytoplasm. It occurs in three steps mainly Glycolysis, Kreb Cycle, and oxidative phosphorylation. Glycolysis occurs in the cytoplasm. Kreb cycle occurs in the matrix of the mitochondria while oxidative phosphorylation occurs in the inner mitochondrial membrane.
The reactants of cellular respiration differ at each stage, but initially, it requires an input of glucose, ATP, and NAD+. NAD+, a nicotinamide adenine dinucleotide derived from vitamin B3, is a universal electron acceptor that is crucial in the process of cellular respiration.
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The Cenozoic era would last how many days and When would the first humans appear on a one year calendar?
The Cenozoic era would last only about 65 million years. The first humans appear on a one-year calendar on December 31st.
What is the Cenozoic era?The last 66 million years of Earth's history are represented by the Cenozoic, the current geological epoch.
It is distinguished by the predominance of mammals, birds, and flowering plants, a chilly, dry environment, and the arrangement of the continents as they are now.
Near the conclusion of the Pleistocene epoch, or between 300,000 and 200,000 years ago, during the Cenozoic era, Quaternary period, Homo sapiens first emerged.
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Carrion beetles lay their eggs in dead animals and then bury them in the ground until they hatch. Assume that the preference for fresh meat (F) is dominant to the preference for rotted meat and that the tendency to bury the meat shallow (S) is dominant to the tendency to bury the meat deep. Suppose a female carrion beetle homozygous dominant for both traits mates with a male heterozygous for both traits. What is the probability of getting a heterozygous fresh meat eater that buries it's meat in a deep hole?0,1/4,1,1/2,3/4
The chance of having a heterozygous fresh meat eater who buries its meat in a deep hole is one-half. This is due to the fact that the dominant gene for fresh meat (F) conceals.
the recessive allele for rotten meat (f), and the dominant allele for shallow burial (S) conceals the recessive allele for deep burial. From each parent, the kid will acquire one allele for each attribute. If the mother is homozygous dominant for both qualities, the dominant allele will always be passed on. Because he is heterozygous for both qualities, the male has a 50% probability of passing on each allele. If the kid inherits F from the mother and s from the father, it will be The likelihood of being heterozygous for both characteristics (Ff and Ss) is 1/2.
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In what phase of meiosis does independent assortment of homologous chromosomes occur ?
Answer:
The law of independent assortment states that the random orientation of homologous chromosome pairs during metaphase I allow for the production of gametes with many different assortments of homologous chromosomes.
Explanation:
According to the rule of independent assortment, gametes with a wide variety of homologous chromosome arrangements can be produced when homologous chromosome pairs are randomly oriented during metaphase I.
Does prophase 1 have independent assortment?Crossover occurs during prophase I and adds genetic diversity by exchanging homologous chromosomal segments.Genetic drift, which takes into consideration how the sister chromatids align during metaphase I, results in the introduction of additional genetic variety.
Does Independent Assortment take place every time?Mendel's principle for independent assortment predicts that distinct gene alleles will segregate into gametes independently, but in practice, this is not always case.Certain genes' alleles can occasionally inherit jointly, and they don't seem to undergo any independent assortment.
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What is the genotype of individual 5?
Due to his offspring's free earlobes, individual 5's genotype is unknown. Individual 5 may therefore have free earlobes either homozygously (FF) or heterozygously (Ff).
What makes anything a genotype?The term "genotype" broadly refers to an organism's genome make-up; in other respects, it characterizes an organism's whole gene pool. The phrase might be used to speak to the alleles in an even more specific way.
What is the typical genotype?There are typically five (5) unique blood genotype types. AA, AS, AC, SS, as well as SC are their names. While the first two sets (AA & AS) are acceptable, AC is uncommon, and the remaining two (SS, SC) are atypical and irregular, frequently resulting in sickle cell disease.
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why is heating a first step in pcr amplification of extracted dna?
The intensity breaks the hydrogen obligations of the first DNA test and isolates the DNA into single strands (this is named denaturation of twofold abandoned DNA)
During the most important phase in PCR, the beginning arrangement is warmed to the fundamental temperature, ordinarily somewhere in the range of 90° and 100°C. As the intensity fabricates, it breaks the securities joining the two strands of the DNA twofold helix, in this manner empowering the DNA to isolate into two single strands.
Enhancement is accomplished by a progression of three stages: (1) denaturation, in which twofold abandoned DNA formats are warmed to isolate the strands; (2) strengthening, in which short DNA particles called preliminaries to tie to flanking districts of the objective DNA; and (3) expansion, in which DNA polymerase broadens the 3′ finishes of each.
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based on observations of free ranging chimpanzees, we now know that at least one of our two closest relatives
Based on observations of free-ranging chimpanzees, we now know that at least one of our two closest relatives, the chimpanzee, uses tools in a sophisticated manner.
This behavior was previously thought to be exclusive to humans and shows that chimpanzees have a level of cognitive and motor ability previously underestimated. Studies have shown that chimpanzees use tools for various tasks, such as fishing for termites, cracking nuts, and harvesting honey. This observations evidence has led scientists to re-evaluate the evolutionary relationships between humans, chimpanzees, and other primates, and has also shed light on the development of early human tool use and behavior. The discovery of observations tool use in chimpanzees has expanded our understanding of primate evolution and the origins of human behavior.
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The complete Question is:
Which of the following best describes what we have learned about our closest relatives based on observations of free ranging chimpanzees?
A. They are our only close relatives.
B. They are one of our two closest relatives.
C. They are not closely related to us.
D. Their behavior is not related to human behavior.
using classification terminology, what type of tissue is shown in the image indicated by the bracket?
A microscopic view of animal tissue is shown. Epithelial tissue is the kind of animal tissue that is depicted in the picture. The right answer is A.
Epithelial tissue, which coats internal organs and cavities and gives birth to glands, covers the surface of the body. The cells in epithelial tissue often have regular shapes and sizes and frequently follow a recognizable pattern. The tissue in the picture appears to be made up of cells that are layered, evenly shaped, sized, and arranged in a single layer, similar to epithelial tissue. As a result, choice A, "Epithelial tissue," is correct. In order to improve the retrieval, access, dissemination, and dissemination of institutional information in the field of health, it seeks to standardize and enhance terminology, concepts, and acronyms. Clinical classifications, vocabularies, and terminologies are standardized collections of ideas (and their synonyms) for registering health-related occurrences and interventions in sufficient detail to facilitate the delivery of healthcare.
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the affinity of hemoglobin for oxygengroup of answer choicesis increased in response to metabolic alkalosis.
The affinity of hemoglobin for oxygen is increased in response to metabolic alkalosis.
The strength by which oxygen binds to hemoglobin is аffected by severаl fаctors аnd cаn be represented аs а shift to the left or right in the oxygen dissociаtion curve. А rightwаrd shift of the curve indicаtes thаt hemoglobin hаs а decreаsed аffinity for oxygen, thus, oxygen аctively unloаds. А shift to the left indicаtes increаsed hemoglobin аffinity for oxygen аnd аn increаsed reluctаnce to releаse oxygen. Severаl physiologic fаctors аre responsible for shifting the curve left or right, such аs pH, cаrbon dioxide ([tex]CO_{2}[/tex]), temperаture, аnd 2,3-Disphosphoglycerаte.
Your question is incomplete, but most probably your full question was
The affinity of hemoglobin for oxygen
A. is greater than the affinity for carbon monoxide.
B. is increased in methemoglobin.
C. decreases as the height above sea level increases.
D. is increased in response to metabolic alkalosis.
Thus, the correct option is D.
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myofibrils are composed of protein filaments called actin and myosin.T/F
It is True that myofibrils are composed of protein filaments called actin and myosin.
Myofibrils are composed of protein filaments called actin and myosin, which are responsible for muscle contraction and relaxation. Actin filaments, also known as thin filaments, provide the structural scaffold for the muscle fiber, while myosin filaments, also known as thick filaments, generate the force for muscle contraction by sliding along the actin filaments. Together, these filaments form a repeating pattern known as a sarcomere, which is the basic unit of muscle contraction. A filament is a thin, elongated structure that can be made up of various materials, including biological polymers, metals, or inorganic materials. In biology, filaments are often made up of proteins and play important roles in cellular structure and function. For example, in muscle fibers, protein filaments actin and myosin form the contractile elements that produce movement. In cells, microfilaments and intermediate filaments are key components of the cytoskeleton, providing mechanical support and helping to maintain cell shape.
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The ________ separates the thoracic cavity from the abdominal cavity, and its contraction causes the process of inspiration.
external intercostals
obliques
diaphragm
internal intercostal
The diaphragm separates the thoracic cavity from the abdominal cavity, and its contraction causes the process of inspiration.
However, certain structures can flow through the diaphragm's three holes, which divide the abdominal and thoracic cavities: The vena caval foramen is the location where the inferior vena cava crosses the diaphragm. In the central tendon, at the level of T8, is where this opening is situated.
The muscle dividing the thoracic (chest) cavity from the belly is called the diaphragm. The primary muscle of breathing is the diaphragm. During inspiration, while one is breathing air in, the diaphragm muscle contracts and expands the lungs.
Air entering and leaving the lungs is assisted by the diaphragm. The diaphragm contracts during inspiration, causing the pulmonary volume to increase and the intrapulmonary pressure to drop to below atmospheric pressure.
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which of the following components are assessed or determined by forensic anthropologists? group of answer choices sex ancestry age manner of death a, b, c only
Forensic anthropologists assess and determine all of the following components (a)sex (b)ancestry (c)age (d)manner of death.
Forensic anthropologists assess and determine the following components:
Sex: The biological sex of the individual can be determined through the examination of the skeleton and pelvis.Ancestry: The ancestral background of an individual can often be inferred from their skeletal structure, as certain morphological traits are characteristic of certain populations.Age: The age of an individual at death can be estimated based on the development and changes in the bones and teeth.Manner of death: Forensic anthropologists can also determine the cause and manner of death through the examination of bones for signs of trauma or disease, which can indicate the cause of death.To know more about anthropologists please refer:
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How are photosynthesis and cellular respiration related?
a. The products of respiration are the same products as photosynthesis
b. The reactants of respiration are the same reactants as photosynthesis
c. The reactants of respiration are the products of photosynthesis
d. Respiration uses none of the same molecules as photosynthesis
Answer:
based on the bellow reactions
IG: c
Explanation:
photosynthesis:
6CO2+12H2OSunlight ChlorophyllC6H12O6+6H2O+6O2.C6H12O6 + 6O2
respiration:
C6H12O6 + 6O2 → 6CO2 + 6H2O (glucose + oxygen -> carbon dioxide + water).
cells of this tissue may absorb and/or secrete substances
The tissue wherein the cells may absorb and/or secrete substance is called epithelial tissue.
Epithelial tissue is a type of tissue that covers the surface of the body, forms glands, and lines internal organs. It is composed of closely packed cells that are arranged in one or more layers, with little intercellular material.
The cells of epithelial tissue are highly specialized for functions such as protection, absorption, secretion, and sensory reception.
1. Protection: Epithelial tissues help protect the underlying tissues and organs from physical trauma, chemical irritation, and infections.
2. Regulation of material exchange: Epithelial tissues regulate the exchange of gases, liquids, and nutrients between the body and the environment, and between different internal organs.
3. Secretion and Absorption: Epithelial tissues are involved in the secretion of hormones, enzymes, and other substances and can also absorb specific molecules from the body.
4. Sensory Perception: Certain types of epithelial tissues are specialized to sense changes in the environment and transmit this information to the nervous system.
5. Filtration: Epithelial tissues can act as filters, allowing the passage of specific molecules while retaining others.
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A plant can have either broad leaves (B) or narrow leaves (b). A plant with
genotype Bb is crossed with a plant with genotype Bb. Which Punnett square
correctly represents this cross?
Answer: A
Explanation:
I'm pretty sure
C Punnett square correctly represents this cross Bb x Bb . So, the correct option is C.
What is Punnett square?The Punnett square is a table that lists every conceivable result of a genetic cross between two people of known genotype. The Punnett square is a square that has been partitioned into four quadrants in its most basic form.
It is a diagram that was created following the breeding event and depicts the potential genotypes of progeny. Geneticist Reginald Punnett invented it initially. The potential genotypes of the progeny are shown in tabular form. One fertilization event is represented by each box in the table. The first letter of the dominant phenotype serves as the representation for each allele in each Punnett square.
In the above given example, Bb is crossed with Bb. The result will be
B b
B BB Bb
b Bb bb
So, the correct option is C.
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Which characteristic of red blood cells allows oxygen to more easily reach hemoglobin molecules within the cytoplasm?
Biconcave shape of red blood cells allows oxygen to more easily reach hemoglobin molecules within the cytoplasm.
Red blood cells are tiny and play important physiological responsibilities for the organism in the blood. They are created in the long bones' crimson bone marrow. They make up between 32 and 50 percent of the total blood volume.
Red blood cells carry the majority of the oxygen and carbon dioxide that are present in the blood. By removing the majority of organelles and the nucleus, they may carry more hemoglobin molecules, which implies greater gas. The biconcave form also increases the cell's surface area, which facilitates a quicker exchange of oxygen and carbon dioxide from the blood cell into the body's tissues.
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if the kingdom plantae is someday expanded to include the charophytes (stoneworts), which of the following shared derived characteristics would be included in the revised kingdom? if the kingdom plantae is someday expanded to include the charophytes (stoneworts), which of the following shared derived characteristics would be included in the revised kingdom? rings of cellulose-synthesizing complexes, chlorophylls a and b, cell walls of cellulose, and ability to synthesize sporopollenin rings of cellulose-synthesizing complexes rings of cellulose-synthesizing complexes, chlorophylls a and b, and alternation of generations rings of cellulose-synthesizing complexes, alternation of generations, and ability to synthesize sporopollenin
If the kingdom Plantae is someday expanded to include the charophytes (stoneworts), then the shared derived characteristics of the kingdom will include rings of cellulose-synthesizing complexes and ability to synthesize sporopollenin Option (A)
Why do cell surface membranes produce cellulose?
Each plant cell has cellulose deposited on the exterior. It cannot be generated intracellularly because it is a water-insoluble polymer with a stiff linear structure.
How does cellulose synthase work?
The cellulose synthase complex (CSC) is a large membrane-bound complex that translocates across the plasma membrane plane generating cellulose microfibrils and is involved in cellulose manufacture at the plant plasma membrane.
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what are 2 ways by which protists obtain energy
Capture the sun's energy and transform it into useable energy. Another kind of protozoa obtains their energy by consuming other living things.
What use do protists serve?Protists have a variety of roles in the ecological food chain, including primary producers, suppliers of immediate food, and decomposers. In addition, a lot of protists were parasites of both animals and plants that can kill people or destroy crops that are worth a lot of money.
What are protists known for?These protists are multicellular as well as single-celled (algae, diatoms) (seaweed or kelp). Because these protists are autotrophic, they are referred described as being "plant-like." These protists have chloroplasts and use photosynthesis to create their own food.
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external obliques, internal obliques, transversus abdominis, and rectus abdominis are abdominal muscles that will perform the following action when both sides are contracted
They will perform the following actions when both sides are an extension of the torso compression/flexion of the torso. Therefore, option B is correct.
What are abdominal muscles?On the front of the body, between the ribs and the pelvis, are the abdominal muscles. By controlling internal abdominal pressure, the abdominal muscles support the trunk, provide movement, and retain organs in place.
External obliques, internal obliques, transversus abdominis, and rectus abdominis are abdominal muscles that will perform the following action when both sides are extensions of the torso compression/flexion of the torso. Therefore, option B is correct.
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Your question is incomplete, most probably your question is:
External obliques, internal obliques, transversus abdominis, and rectus abdominus are abdominal muscles that will perform the following action when both sides are
A. contracted.
B. extension of the torso compression/flexion of the torso
C. rotation of the torso
D. lateral flexion of the torso
after observing the phylogenies of the different islands, did adaptive radiation and convergent evolution occur? why?
Each island has a different order of ecomorph evolution.
The phylogenetic hypotheses is that which provides a framework for examining the evolution that is morphological, ecological, behavioral, and physiological adaptations and the circumstances in which they have arisen and they allowed adaptive radiation. Vertebrate taxa have been a prime focus for this research with topics that includes phenotypic plasticity by providing an early common ground for ecologists and biologists. When specialists in ecology look at an adaptive radiation event, they try to demonstrate the link between a supposedly adaptive feature and the organisms’ environment. When paleontologists look at those same adaptive radiations, they will try to explore the number of species over time in detail.
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in a diploid population, individuals that are homozygous recessive for a particular locus produce viable offspring at only 5% of the rate that heterozygous or homozygous dominant individuals. what is the selection coefficient for the homozygous recessive genotype?
The selection coefficient for the homozygous recessive genotype is 0.95.
Selection coefficient in genetics measure the relative fitness in population genetics. It's shows us a relative reduction in the contribution that a particular genetic composition makes to the gametes as compared with other types of genetic composition in the population. It is a essential quantitative description of evolution. It is denoted by Letter s and is given by 1 minus adaptive value of the genotype. That is s = 1 - W. So is the adaptive(W) value is 5%, That is equal to 0.05 therefore s or selection coefficient is equal to 1-0.05 that is 0.95. This selection coefficient is used by scientists to study the rate at which gene frequencies change from generation to generation.
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a list of environmental factors that may affect the rate of gas production
Answer:
Temperature, light intensity, and the availability of nutrients such as carbondioxide are the environmental factors.
Explanation:
when taking a systematic random sample of size n, every group of size n from the population has the same chance of being selected.
In fact, this is true. Each group of size n from the population has an equal chance of being chosen when using a systematic random sample.
This is so because each element in the sample is chosen at random from the population, followed by the selection of the next n elements.
With this, each group of size n is guaranteed an equal probability of getting chosen.
Systematic Sample members are picked from a bigger group using a fixed, periodic interval but a chance primary source in sampling, a type of probability sampling approach.
By splitting the sample size of the population by the number of samples desired this interval, also known as the sampling interval, is computed.
Applied properly to a sizable population of a specific size, systematic sampling.
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What chromosomes line up randomly during metaphase Therefore it is possible for any combination of chromosomes to be passed on from parent to offspring?
Homologous pair of chromosomes line up randomly during metaphase.
The chromosomes are all lined up at the center of the cell by the spindle during metaphase, ready to divide. Microtubules from opposing spindle poles seize the two sister chromatids of each chromosome. The homologous chromosomes align separately along the metaphase plate in metaphase II. Any combination of chromosomes can thus be passed on to the next generation.
The metaphase homologous pairs' random orientation I enables the generation of gametes with a wide range of homologous chromosomal combinations. There are certain locations in each meiotic cell where homologues can connect and trade genetic material. These locations are mostly picked at random.
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1. Imagine you have collected data on the temperature and dissolved oxygen (mg/L) in a eutrophic lake over 5 years. You want to see if dissolved oxygen varies with temperature in this lake. What statistical test would you do? Explain why you chose this test.
Pearson's correlation test to observe changes dissolved oxygen and temperature.
I would perform a Pearson's correlation test to see if there is a relationship between dissolved oxygen and temperature in the eutrophic lake. This test measures the linear relationship between two continuous variables. In this case, temperature and dissolved oxygen are both continuous variables, and I want to see if a change in temperature results in a corresponding change in dissolved oxygen. Pearson's correlation test will give me a correlation coefficient that indicates the strength and direction of the relationship between the two variables.
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What is the most important way to slow bacterial growth in tcs food?
The temperature danger zone must be passed by TCS food as rapidly as feasible. Be sure to keep hot food hot and cold food cold. To determine the temperature of food inside, always use a thermometer.
The risk of dangerous bacterial development and toxin generation in TCS food is reduced by using temperature controls. Controlling time and temperature is the most crucial step in avoiding bacteria-caused foodborne illnesses. The pathogen that needs to be controlled must be treated with an appropriate antibiotic treatment. The best technique to inhibit microbial development is through sterilisation and disinfection using heat. To kill bacteria, water must be heated to a minimum of 140 degrees Fahrenheit.
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A bacterium that only possesses the ability to ferment obtains energy O by glycolysis only. O by fermentation or aerobic respiration. O only in the presence of oxygen. by aerobic respiration only. O only in the absence of oxygen.
A bacterium that only possesses the ability to ferment obtains energy D: "only in the absence of oxygen".
Fermentation is a metabolic process that allows cells to obtain energy in the absence of oxygen. When oxygen is not available, cells can break down sugars such as glucose through a process called glycolysis, which produces a small amount of energy in the form of ATP. During fermentation, the byproducts of glycolysis are converted into organic acids, such as lactic acid or ethanol, which can be used by the cell as a source of energy.
Bacteria that only possess the ability to ferment would not be able to perform aerobic respiration, as it requires oxygen. Thus, they would obtain energy only in the absence of oxygen through fermentation.
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