Answer:
Sea breezes occur during hot, summer days because of the unequal heating rates of land and water. During the day, the land surface heats up faster than the water surface. Therefore, the air above the land is warmer than the air above the ocean.
Explanation:
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Question 9 of 10
Which elements are in the substance that makes up about 60% of the male
human body?
A. Carbon and phosphorus
B. Phosphorus and nitrogen
C. Hydrogen and oxygen
D. Calcium and oxygen
SUENT
Answer:
the answer would be c. hydrogen and oxygen
True or false: During cellular respiration, about 60% of the energy from the glucose molecule dissipates as heat.
Answer:
true
Explanation:
Answer:
true
Explanation:
Which of the following factors affecting population growth is density
independent?
A. Competition
B. Disease
C. Natural disaster
D. Predation
C. Natural disaster is a density-independent factor affecting population growth. Density-independent factors are those that affect the population irrespective of the population size or density.
How Natural disasters reduce population sizes?Natural disasters such as floods, hurricanes, earthquakes, and wildfires can reduce population sizes regardless of how many individuals were present in the population before the disaster occurred. The other factors listed - competition, disease, and predation - are all density-dependent factors, which means that they become more significant as the population size or density increases.
Competition is an example of a density-dependent factor, as it increases as the population size increases. As more individuals compete for limited resources such as food, water, and shelter, the rate of population growth slows down.
Disease is another density-dependent factor, as it spreads more easily in crowded populations where individuals are in close contact with one another.
On the other hand, natural disasters such as floods, hurricanes, and wildfires are examples of density-independent factors. These events can affect a population regardless of its size, and they can cause significant decreases in population size.
Predation can be both a density-dependent and density-independent factor. In some cases, predation can increase as the population size increases, making it a density-dependent factor. However, predators can also reduce the population size through random hunting or selective hunting of weaker individuals, making it a density-independent factor.
Understanding the factors that affect population growth is important for predicting and managing population sizes in both natural and human-made ecosystems.
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which are limiting nutrients for plant growth?
Answer:
Nitrogen and phosphorus are among the elements considered most limiting to plant growth and productivity because they are often present in small quantities locally or are present in a form that cannot be used by the plant.
Explanation:
Answer:
phosphorus and nitrogen
Explanation:
edge
Why doesn't the level of oxygen in the atmosphere decreases'?
Answer:
Oxygen levels are decreasing globally due to fossil-fuel burning. The changesare too small to have an impact on human health, but are of interest to the study of climate change and carbon dioxide.
#CarryOnLearning
Answer:
The atmosphere is constant for many years does not decrease because the green plants which are capable of photosynthesis take up CO2 from the atmosphere and produce 0 2 in return
Which is not an affect of testosterone in males?
A.Increase muscle mass
B.Change the voice to a higher pitch
C.The thickness and distribution of hair follicles on the body and head
D.Sperm production
Answer:
the answer is c
Explanation:
not much else to explain
The following equation shows the correct molecules formed in the reaction, but the products are incorrect
CH, +20,- H2O + CO2
How would you correct the products?
Answer:
CH4 + O2 ----> CO2 + H2O
Explanation:
the results is carbon dioxide plus water
How do you think genomics and genetic engineering will contribute to the development of more productive food crops and what ecological implications should be considered? Be sure to include examples of existing and future GMOs that are contributing to the debate. What are the main criticisms of the Green revolution, and how can we mitigate some of the negative aspects? Cite your work
Answer:
The importance of optimal nutrition for human health and development is well recognised. Adverse environmental conditions, such as drought, flooding, extreme heat and so on, affect crop yields more than pests and diseases. Thus, a major goal of plant scientists is to find ways to maintain high productivity under stress as well as developing crops with enhanced nutritional value. Genetically-modified (GM) crops can prove to be powerful complements to those produced by conventional methods for meeting the worldwide demand for quality foods. Crops developed by genetic engineering can not only be used to enhance yields and nutritional quality but also for increased tolerance to various biotic and abiotic stresses. Although there have been some expressions of concern about biosafety and health hazards associated with GM crops, there is no reason to hesitate in consuming genetically-engineered food crops that have been thoughtfully developed and carefully tested. Integration of modern biotechnology, with conventional agricultural practices in a sustainable manner, can fulfil the goal of attaining food security for present as well as future generations.
Explanation:
a dark soil is usually rich in
An experiment was conducted to determine whether a deficiency of carbon dioxide in the soil affects the phenotype of peas. Listed below are the phenotype codes where 1=smooth-yellow, 2=smooth-green, 3=wrinkled-yellow, and 4=wrinkled-green. Do the results make sense?
Answer:
No
Explanation:
The results of the phenotype do not make any sense in relation to the main aim of the experiment.
Smooth, wrinkled, yellow, green describe attributes relating to seed texture and flower colours in a result that simulates that of a plant breeding experiment, rather than a plant physiology experiment.
The determination of the effects of carbon dioxide deficiency in the soil on the phenotypes of peas is a physiological experiment. Hence, a result in the form of a plant breeding experiment would make not be relevant.
How does renal medulla differ from renal cortex?
Answer:
The main difference between renal cortex and renal medulla is that renal cortex is the outer region of the kidney which contains blood vessels connected to the nephrons whereas renal medulla is the inner region of the kidney which contains 8-12 renal pyramidsIdentify the organelles in the cell to the right.
Answer:
which one?
i dont see anyting on the right
Answer:
Explanation:
e
The cells inside our nerves are called what?
Answer:
Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process. The human brain has approximately 86 billion neurons. ... Neurons are surrounded by a cell membrane. Neurons have a nucleus that contains genes.
Explanation:
Answer:
Neurons are the information-processing cells of the nervous system. They are categorized as receptors, interneurons, or effectors, depending on their function. The dendrites of a neuron provide an extended receptive surface for the cell, increasing greatly the number of synaptic inputs.Which organism in the food web below is found in the first trophic level of the
ecosystem?
A. Fungus
B. Strangler fig
C. Fruit bat
D. Sloth
Fungus is the organism in the food web displayed in the image in the first trophic level of the ecosystem.
What is trophic level?Trophic level is defined as the position of an organism in the food chain or food web.
The trophic level consists of organisms at different levels. The first trophic level is made up of producers that initiate the transfer of energy.
According to this question, an image showing a food web is given. The first trophic level in this food web is the fungus because it starts the energy transfer.
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An anaerobic metabolic pathway that results in the production of two net ATPs per glucose plus two pyruvic acid molecules is glycolysis True False
Answer: True.
Explanation:
Glycolysis is a process that occurs in the cell cytoplasm, in which a 6-carbon glucose molecule is cleaved into two 3-carbon pyruvate molecules. Two molecules of ATP (Adenosine triphosphate, a molecule that acts as a source of energy to perform biological processes.) and two molecules of NADH are also obtained. It is a metabolic pathway responsible for oxidizing glucose in order to obtain energy for the cell. It consists of a series of consecutive enzymatic reactions, and when pyruvate is obtained, it continues to be used in other metabolic pathways in order to continue delivering energy to the organism. Glycolysis takes place both in the absence and presence of oxygen, so it is defined as an anaerobic process. Therefore, the final destination of the products obtained in glycolysis will depend on the conditions of the environment in which it is found, which will determine the metabolic pathway to be followed (i.e., whether oxygen is available or not). In the absence of oxygen, glucose will not be completely oxidized to carbon dioxide and water, generating fermentative products (lactic acid in animals and ethanol in yeast) producing only two net ATP molecules. In the presence of oxygen, the pyruvate obtained during glycolysis enters the Krebs cycle (to produce energy in usable form as ATP or GTP) and then undergoes oxidative phosphorylation (the process by which ATP is formed as a result of electron transfer from NADH or FADH2 to oxygen via a series of electron transporters) producing a net gain of between 36-38 ATP.
1. Complete the unfinished DNA strand from below.
2. What m-RNA strand would be formed from the DNA strand that you just made in #1 above?
3. Using the codon chart in the lesson, what amino acids would be aligned from the following m-RNA strand?
A U G G C G G A A
4. If the first base in the sequence above (#3) were mutated to a C, what would that do to the amino acid sequence?
5. If you were given a single tiny chunk of a nucleic acid strand and asked if it was DNA or RNA, what things would you look for to tell?
Explanation:
1. is T G C A T because it is a DNA as it contains thymine.
2. so mRNA strand would be U G A C G U A as it is in RNA so it would be uracil with adenine.
3. is Met- Ala- Glu
4. if is mutated to a C then it would be C U G G C G A A
so it would be Leu-Ala-Glu.
5. you can look for if it contains thymine or uracil. If thymine then DNA if Uracil then RNA. you can also see if it is double or single strand. if double than DNA if single than RNA.
hope this helps you :)
Bacteria are organisms that reproduce asexually. How is it better for them than reproducing sexually.
Answer: they don't have a reproductive system
Explanation:
How is a virus different from a bacterium?
A. A virus causes illness, but a bacterium does not.
B. A bacterium is a living cell, but a virus is not.
C. A virus is a living cell, but a bacterium is not.
D. A bacterium causes illness, but a virus does not.
Answer:
option B
Explanation:
On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.
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Question 28 of 30
The diagram below shows part of the process of DNA transcription. Which
mRNA base will go in location 1?
DNA
TCHCIGATI
ACACAC123
mRNA
A. Uracil
B. Cytosine
C. Thymine
D. Adenine
Answer:
uracil
Explanation:
uracil is complenentary to adenine in transcription
The diagram below shows part of the process of DNA transcription. Uracil mRNA base will go in location 1.
What do you mean by DNA transcription?The process of turning a piece of DNA into RNA is called transcription. Messenger RNA is said to be produced when DNA segments are transcribed into RNA molecules that can encode proteins.
DNA record is the cycle by which the hereditary data held inside DNA is re-composed into courier RNA (mRNA) by RNA polymerase. After that, this mRNA leaves the nucleus and serves as the foundation for DNA translation.
The nucleus is where transcription takes place. An RNA (mRNA) molecule is produced by using DNA as a template. During record, a strand of mRNA is made that is corresponding to a strand of DNA.
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Which process occurs during the light-dependent reactions in photosynthesis?
A. Water molecules are split
B. Carbon fixation occurs
C. PGA is reduced
D. RuBP is regenerated
Answer:
b
Explanation:
What purpose does numerous microvilli serve?
A) Absorbs nutrients
B) Absorbs vitamin/s minerals
C) Absorbs foods/glucose
D) Increases surface area for absorption
E) All of the above
Answer:
D) Increases surface area for absorption
Explanation:
Microvilli are microscopic structures found mostly attached to the epithelial cells of certain organs. Microvilli helps the organs their found to increase the surface area for the diffusion of substances.
For example, microvilli in the epithelial cells of the small intestine helps to increase the surface area for the absorption of nutrients in the blood.
Complete a Punnett square for the cross-pollination of a female (TT) and a male (Tt). Write in the correct answers to complete the square.
Answer:
The correct answer is -
50% chances of Tt
50% chances of TT
Explanation:
In the given question it is given that there is a cross-pollination between a female (TT) and a male (Tt), which means female has two dominant copies of a trait in her genotype while the male is a heterozygous, the gametes of these genotypes will be:
gametes: T, t and T, T
then cross will be:
T T
T TT TT
t Tt Tt
Thus, the given result shows 1/2 TT and the rest 1/2 Tt by this Punnett square.
Antibody tests are commonly used for rapid diagnosis of many types of infection. However, they are NOT particularly useful for diagnosis of histoplasmosis. Why is this so
Answer: Antibody tests are not useful because in endemic areas over 95% of the population has been infected without contracting the disease.
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What conclusion can be drawn concerning an inhibitor if the Km is the same in the presence and absence of the inhibitor
Answer: The inhibitor has a structure that is not similar to the substrate.
Explanation:
Enzymes are molecules that act as catalysts of chemical reactions, accelerating the reaction rate without affecting the equilibrium of the reaction, as long as it is energetically possible. They act on molecules called substrates, which are converted into different molecules called products.
Enzymes are very selective with their substrates and are also susceptible to inhibitors which are molecules that regulate enzyme activity, inhibiting its activity. Inhibitors can be classified as reversible and irreversible. Irreversible inhibitors bind covalently to the enzyme with no possibility of reversing the modification they make, while reversible inhibitors bind reversibly to the enzyme and can reverse the modification.
A reaction occurring under the control of an enzyme reaches equilibrium much faster than the corresponding uncatalyzed reaction. The reaction, i.e. the production of products, can reach a saturation point if the substrate concentration increases too much, decreasing the concentration of free enzyme, which becomes the form with bound substrate. At the maximum rate (Vmax) of the enzyme, all active sites of the enzyme have substrate bound, and the amount of complexes is equal to the total amount of enzyme. The amount of substrate required to obtain a given reaction rate is also important and this parameter is given by the Michaelis-Menten constant (Km), which is the concentration of substrate required for an enzyme to reach half its maximum velocity. Each enzyme has a characteristic Km value for a given substrate, which can tell us how close the binding between the substrate and the enzyme is. Then, inhibitors bind to the substrate and increase the Km value as it interferes with the binding between substrate and enzyme. In this case, the Km value of the enzyme is the same in the presence and absence of the inhibitor, this means that there is no change, because the inhibitor has a different structure to the substrate, it does not bind and does not change the Km value.
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In some cases, people who test positive for genetic testing can receive preventive treatments. For example people who test positive for the breast cancer genes BRCA1 and BRCA2 can have a preventive mastectomy (breast removal surgery) before they develop the disease. In other cases, no preventive treatments are available, but frequent monitoring can help detect a disease earlier, when it's more easily treated.
What ethical or professional concerns does a health-care professional need to address when he or she has a patient who wants to prematurely treat a genetic disease? Do you think genetic testing should be part of normal preventive healthcare? Why or why not.
Answer:
Yes because genetic testing will provide enough evidice for the genetic disease. If you do so you can find diseases before they have long lasting effects on the hosts body
Explanation:
Mutualism is a symbiotic relationship
where...
A. both organism gain from the interaction.
B. one organism gains but the other is unaffected.
C. one organism gains but the other is harmed.
Answer:
A. both organism gain from the interaction.
Explanation:
mutualism meaning both parties profit.
The automatic control systems that control our temperature, pH, ions, and blood sugar is called:
A. Immune system
B. Homeostasis
C. Homeopathy
D. Regulatory system
Answer:
The correct answer is - B. Homeostasis.
Explanation:
Homeostasis is the automatic control system that maintains optimal conditions for enzyme action in the complete human body, and other important functions such as hormonal response and others.
In the human body, homeostasis includes the control of temperature, pH, ions, and blood sugar with help of various enzymes, hormones, and sensory organs.
Answer:
Homeostasis
Explanation:
Part Two: Position Paper What's your position about building roads in the rainforest? Write a paper that explains your position. Use facts from your research to support your position. How would humans and different parts of Earth be affected by the construction? Is there any argument against your position?
Answer:
We should not be building roads in the rain forest. Some reasons behind this include trees produce oxygen, animals leaving their natural habitat would not survive, and it would only increase pollution. Research states that if pollution increases any more, the Ozone protecting us will deteriorate. Other research states that if animals lose their natural habitat and have to adapt to a new environment, they are not very likely to survive. And not surviving means that the food chain will break, affecting everything above it, and that could also include us. This concludes why we should not build roads in rain forests.
Explanation:
Sorry if its short, but here <3
No roads should be build in the rainforests.
What do you mean by rainforests?
"A luxuriant, dense forest rich in biodiversity, found typically in tropical areas with consistently heavy rainfall."It's a moisture dependent vegetation.Why no roads?To build a road a vast area full of vegetation will be cut down.This will adversely affect the climate and habitats of organisms living there.This will also result in scarcity of rainfall.This results in interference of humans on the habitat of that area.Hence, building of road should be avoided in rainforests.
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The haploid cells that join during sexual reproduction are called
Answer:
During sexual reproducion, two haploid gametes join in the process of fertilization to produce a diploid zygote.
zygote is tje answer:).
Question in the picture
Answer:
A.
Explanation:
It's sugar or glucose and oxygen