Answer:
No!
Explanation:
Safety precautions must be taken with this procedure. Such as, protective gear, bacteria should not be mixed with other substances!
the diagram shows represents the number and age of fossils found in the grand canyon. the width of each shaded area in the diagram indicates the relative number of fossils found. which of the following statements is best supported by the fossil record
The fossil record from the grand canyon shows that organisms in group D were able to survive and remain relatively stable for the longest duration.
What are fossils?Fossils are remains of plantsand animals that have been preserved for a long time within rocks and underground.
The fossils records found in the grand canyon shows that the organisms in group D remained relatively unchanged while other organisms either went extinct or kept undergoing changes in their population.
Therefore, it can be concluded that the organisms in group D were able to survive and remain relatively stable for the longest duration.
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3.) Is the trait shown recessive or dominant?
Answer:
top two are recessive if not shaded
Explanation:
bottom one is dominant male
Use the drop-down menus to identify which bacterial shape applies. a (rod-shaped) b (spiral-shaped) c (spherical)
The identity of the bacterial shape is the following:
a (rod-shaped)- bacillus.
b (spiral-shaped)- spirillum.
c (spherical)- coccus.
What are bacteria?Bacteria are single-celled microorganisms found as free-living or parasites.
They are found in many shapes and sizes.
There are good bacteria that help humans and other animals, and bad bacteria are harmful to the animals.
Thus, the shape of the bacteria area (rod-shaped)- bacillus., b (spiral-shaped)- spirillum., c (spherical)- coccus.
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Answer✔ Bacillus
A (rod-shaped)
✔ Spirillum
B (spiral-shaped)
✔ coccus
C (spherical)
Explanation:
Which exocrine gland is indicated by the arrow? pancreas salivary glands liver lacrimal glands.
The exocrine gland indicated by an arrow is the liver.
What is an exocrine gland?
A gland that makes substances such as sweat, tears, saliva, milk, and digestive juices, and removes them through a duct or opening to a body surface.
Examples of exocrine glands include sweat glands, lacrimal glands, salivary glands, mammary glands, and digestive glands in the stomach, pancreas, and intestines.
Thus, the exocrine gland indicated by an arrow is the liver.
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Answer:
C) Liver
Explanation:
got it right on edge! Good luck <3
Select all of the limiting factors that are density-dependent. question 12 options: fire disease predation hurricane competition for food competition for light flood waste accumulation
The limiting factors that are density-dependent are disease, competition and predation.
What are the four main limiting factors in an environment?The common limiting factors in an ecosystem are food, water, habitat, and mate. The availability of these elements will impact the carrying ability of an environment.
As the population increases, food demand increases as well. Since food is a limited resource, organisms will begin competing for it.
Thus, disease, competition and predation are limiting factors.
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What evidence do the structures provide?the similar structure of the limbs indicates that the organisms evolved at the same time.the similar structure of the limbs indicates that the organisms evolved at the same time.the similar structure of the limbs indicates that the organisms share a common ancestor.the similar structure of the limbs indicates that the organisms share a common ancestor.the similar structure of the limbs indicates that the organisms develop at the same rate.the similar structure of the limbs indicates that the organisms develop at the same rate.the similar structure of the limbs indicates that the organisms live in the same habitat.the similar structure of the limbs indicates that the organisms live in the same habitat.
The evidence provided by the structure is that: the similar structure of the limbs indicates that the organisms share a common ancestor.
What are homologous structures?Homologous structures are those structures that are similar and can be attributed to a common ancestor.
A common example of homologous structures in evolution are the wings of bats and the arms of primates.
Therefore, it can be said that evidence provided by the structure is that: the similar structure of the limbs indicates that the organisms share a common ancestor.
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The ________ helps keep food between the grinding surfaces of the teeth during chewing.
What is the largest of the cranial nerves and the most important sensory nerve of the face?.
Answer:
The Trigeminal Nerve
Explanation:
The largest of the cranial nerves and most important sensory nerve of the face is the trigeminal nerve (letter C).
Which types of cells form a cell plate during cytokinesis
Answer:
animal daughter cells
Explanation:
Instead of plant cells forming a cleavage furrow such as develops between animal daughter cells, a dividing structure known as the cell plate forms in the cytoplasm and grows into a new, doubled cell wall between plant daughter cells. It divides the cell into two daughter cells.
What functional brain system participates in memory, learning, emotion, and behavior?.
Answer:
Limbic System
Explanation:
The limbic system of the brain is responsible for behavioral and emotional responses.
How is gravity simulated on the hermes spacecraft?.
Answer:
A section of the spacecraft is slowly rotated in order to simulate the force of gravity.
Explanation:
The rotational force of the spacecraft makes an artificial sort of gravity, which can be altered by changing the speed of the spinning or by moving the rotating part further/closer to the center point of rotation.
________ is/are one of the main causes of evolution.
Mutations
Darwin
Niches
An acquired trait
Answer:
mutations
hope this helps
What traits were the most favorable for the environment of the hummingbirds?
Examples of places where Hummingbirds live:
Alaska all the way to ChilesTraits of Environment:
forested and woodedlots of flowershas grasslands and meadowsmarshes and Riparian corridorsDesert scrublandsCanyonGardens and backyards*hummingbirds really do live in diverse areasso that's why can live in so many different areas
Hope that helps!
What connects the left and right hemispheres of the brain?.
Answer:
The two hemispheres are connected by a thick band of nerve fibres called the corpus callosum.
Explanation:
How many oxygen molecules can one hemoglobin carry.
Answer:
The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.
Answer:
Oxygen binds reversibly to harem, so each hemoglobin molecule can carry up to four oxygen molecules. Hemoglobin is an allosteric protein; the binding of oxygen to one harem group increases the oxygen affinity within the remaining harem groups.
in your field experiment to study the gene flow between the lizard populations what type of evidence will support that gene flow has occurred?
The change in allele and genotypic frequencies in a population is evidence of gene flow.
What is gene flow?The term gene flow makes reference to the interchange of genetic material between individuals of two or more populations.
The gene flow generates a change in the allele and genotypic frequencies in the individuals of a population in equilibrium.
The gene flow may be due to migration and this phenomenon must be mediated by reproduction.
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what is the name of the process that appears in the diagram below?
Help please tell me if I'm wrong
i believe the answer is C. however I'm not certain.
Why do many people believe the current aid to Africa situation is doing more harm than good?
A) Countries are only relying on charitable contributions from religious based organizations.
B) There is not enough money being sent to Africa to do enough good.
C) Most government to government aid has been pocketed by corrupt officials.
D) Most people in Africa are not educated enough to use the money wisely.
Answer:
yes it is C
Explanation:
i saw the answer on quizlet
This Is Multiple Choice!!!
The motion of the Earth is modeled here as it moves on its axis and around the Sun. Which of these statements correctly identifies
how the illustration supports the concepts of seasons on Earth? Select ALL that apply.
A)
The tilt of the Earth is responsible for the seasons.
B)
The rotation of the Earth is responsible for the seasons
Eliminate
c)
The proximity of the Earth to the Sun is responsible for the seasons.
D)
The revolution of the Earth around the sun is responsible for the seasons.
E)
The intensity of the sunlight on Earth is different as the Earth revolves
around the sun
Answer:
this might not be right I don't know much about earth science but I believe your answer is A) D)and possibly B)
Explanation:
I hope this is right!
Answer:
its b and c
Explanation: its simple common sense like are you serious right now
determine if the following are true or false
Organisms in an ecosystem are independent. do you think humans have interdependent relationships with other organisms? explain your response
Answer:
Yes, humans are interdependent with many other organisms. We require animals to eat, as well as plants. All living things depend on their environment to supply them with what they need, including food, water, and shelter. Many living things interact with other organisms in their environment. In fact, they may need other organisms in order to survive.
Explanation:
Fill in the concept map with details about linnaean taxonomy.
The classification of Linnaean taxonomy include kingdom, phylum, class, order, family, genus, and species.
What is taxonomy?It should be noted that taxonomy simply means the classification of items based on their structures and behavior.
The linnaean taxonomy is the classification that was set up by Carl Linnaeus. In this case, the classification of Linnaean taxonomy include kingdom, phylum, class, order, family, genus, and species.
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Lipids are non polar what does this mean?
Answer:
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The charge distribution is evenly distributed, and the molecules do not have positive and negatively charged ends.
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Answer:
lipids are nonpolar moecules which means their ends are not charged. Because they are nonpolar and water is polar lipids are not soluble in water. That means the lipid molecules and water molecules do not bond or share electrons in any way. Hope this helps
What kind of enzyme removes a phosphate group from a protein?.
Answer:
A phosphatase
Explanation:
A phosphatase is an enzyme that removes a phosphate group from a protein. Together, these two families of enzymes act to modulate the activities of the proteins in a cell, often in response to external stimuli.
The feature of earth movement that takes about 26000 years is called
It takes Earth's axis about 26,000 years to complete a circular "wobble." This wobble is called axial precession. Earth's axis helps determine the North Star, and axial precession helps change it.
Answer:
Precession
Explanation:
its precession
Which of these is a threat to the survival of an ecosystem A.less biomass at higher levels of the food web B. competition among some consumers population C.a shrinking variety of animal and plant species D.predator prey population cycles
Answer:
Answer: C) In an ecosystem, prey and predator populations affect each other.
Think of cause and effect: The wolves keep the deer population in check because they hunt them. If the wolf population increases, the deer population goes down. If you reduce the number of wolves than the deer population goes up.
Hope this helps :)
Explanation:
A particular triplet of bases in the template strand of dna is 5' agt 3'. The corresponding codon for the mrna transcribed is
The corresponding codon for the mRNA that is transcribed is referred to as 3'-UCA-5'.
What is a Codon?This is defined as a trinucleotide sequence of DNA or RNA that corresponds to a specific amino acid.
During transcription, the corresponding base for Adenine is Uracil, cytosine is to guanine and Thymine is to Adenine and 5'3' to 3'5'.
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The corresponding codon for the mRNA transcribed is 3'-UCA-5'. The corresponding mRNA lacks the nucleotide base thymine (T).
What do you mean by mRNA?mRNA may be defined as the molecules that carry the genetic information needed to make proteins.
During transcription, the template strand of DNA is transformed into the mRNA in the nucleus of the cell. mRNA consists of nucleotide bases Adenine, Guanine, Cytosine, and Uracil. Hence, the sequence of the strand gets reversed according to the template strand of the DNA.
Therefore, the corresponding codon for the mRNA transcribed is 3'-UCA-5'.
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According to the food web, how many primary consumers are indicated?
Select one:
O a 2
O b. 1
O c.3
O d.4
Answer:
C. 3.
The grasshopper, rabbit, and mouse are all primary consumers. A primary consumer is an organism that consumes producers (plants/primary producers). A primary consumers only eat plants and dont eat any meat so the grasshopper, mouse, and rabbit would be the three only primary consumers.
Hope this helps! :D
As per the food web, the number of primary consumers is 3. The correct option is c.
A food web is a sophisticated network of linked food chains that represents the movement of nutrients and energy within an ecosystem. It exemplifies how various organisms in a society rely on one another for survival.
Herbivores, usually referred to as primary consumers, are very important to the food chain. They are organisms that consume plants or compounds derived from plants directly.
They act as a link between lower-level consumers (plants) and more affluent ones (predators). Rabbits, deer, cows, and other insects are a few examples of primary consumers.
Primary consumers use plant materials to get energy, but they also help control plant populations, affecting the ecosystem's general stability and balance.
Thus, the correct option is c. as it is having 3 primary consumers namely rabbit, grasshopper, and mouse.
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How does the genetic material on two sister chromatids compare?
Answer:
sister chromatids carry identical genetic make up all the time.
Classify the phrases based on whether they describe prostaglandins, leukotrienes, or both prostaglandins and leukotrienes
Prostaglandins and leukotrienes share some differences and similarities because they are derived from the same source.
Differences and similarities between prostaglandins and leukotrienesThe distinct or unique qualities of Prostaglandins is that:
In synthetic form , they are used to induce labor/ child birth,They stimulate uterine contractions, andcontain a ring structure with at least three or more carbons.The distinct features of Leukotrienes is that:
They trigger asthmatic response.The similarity between prostaglandins and leukotrienes is that:
They are derived from arachidonic acid andcauses inflammation.Learn more about arachidonic acid here:
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Prostaglandins and leukotrienes are eicosanoid lipid mediators which are derived from phospholipase-released arachidonic acid and are involved in various homeostatic biological functions and inflammation.
What produces Prostaglandins and leukotrienes?Eicosanoids, produced from arachidonic acid include prostaglandins, thromboxane, and leukotrienes in the placenta and various fetal tissues.
Prostaglandins: it is used in synthetic form, which is used to induce labor as it stimulates uterine contraction.Leukotrienes: it triggers asthmatic response. Prostaglandins and leukotrienes: It is derived from arachidonic acid and causes inflammation.Leukotrienes are formed in cells by arachidonate 5-lipoxygenase while arachidonic acid is an intermediate in formation process of prostaglandins.
According to their roles in vasodilation, both prostaglandins and leukotrienes causes inflammation.
Thus, it can be concluded that there are some similarities and some differences in both prostaglandins and leukotrienes.
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