Which type of microscope should Sherman use to try to see the 3-dimensional shape of a virus in the patient's sample?

1 answer:

7 0

A Scanning Electron Microscope (SEM) should be used by Sherman to try to see the 3-dimensional shape of a virus in the patient's sample. SEM is a type of electron microscopy that can scan the surface of the object to be viewed with the help of the beam of electrons and can give clear and detailed structure of that object. It produces the image in 3-dimension.

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With the endosymbiotic hypothesis in mind, what structure within modern-day chloroplasts is likely derived from the cytoplasm of

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The chloroplasts had inner membrane

Explanation:

The primitive photoautotrophs utilized hydrogen sulphide as the electron donor to perform photosynthesis for energy production.

Later upon understanding the endosymbiotic relationship of cyanobacteria which resided in the mitochondria of a eukaryotic host cell, the use of chloroplasts for photosynthesis was understood.

Generations after generations led to the development of chloroplasts by the cyanobacteria due to this symbiotic relationships which developed into the chloroplasts.

The unique presence of the inner membrane and its components like the stroma, thyllakoids helped the organism to utilize water as the electron donor for photosynthesis like the present day eukaryotes. This is the main reason why cyanobacteria is considered as the ancestor for eukaryotes.

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a student placed a stack of rocks on a ramp. she added clumps of soil rooted with live grass. using a garden hose, she then appl

Arlecino [84]

Answer:b

Explanation:

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In Montana, wild huckleberries rely on bears and other herbivores that consume their fruit to spread their seeds. As a result, t

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Answer:

The consumption efficiency of huckleberry is high, like in forest ecosystem.

Explanation:

Huckleberry is a term mainly used to describe numerous variations of plants with different colored small berries. These are a rich source of nutrition for wild bears of Montana.

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Here is a hypothetical situation: An area of the country has received a record amount of rainfall this year coupled with a mild

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Zika virus and West Nile virus are the two pathogens which causes more diseases due to increase the population of mosquito.

Explanation:

Zika virus belongs to the family of Flaviviridae. Aedes mosquitoes which are active at day time are the carrier of this virus. West Nile virus is also spread through the bite of mosquito. The infected mosquito is the main cause of spreading of this disease. This virus is spreading too fast in the United States of America in the summer season where the population of mosquitoes increases.

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Answer: Correct options B, D and E.

Explanation:

In the cladogram, we can see that in the first branch we have a division, one branch goes to fish and the other goes to a division (a division means a common ancestor)

Then the fish are the most primitive (being directly related to the first ancestor)., E is true.

We also can see that between fish and birds we have 3 separations (the ancestor in common is 3 "generations" behind), and between frog and birds we have two separations (the common ancestor is 2 "generations" behind), so frogs are more closely related to birds than fish.

So D is also true.

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