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Lunna [17]
4 years ago
15

Why is it so hard to define viruses as living or non-living?

Biology
2 answers:
mixer [17]4 years ago
8 0
Virus are living beings but it is hard to decide whether they are living or not because of several reasons. 1- they show the characteristics of living being when only it live in a cell. 2- they never breathe 3- they are minute 4- they have a simple body structure 5- they reproduce some say they are in the border between living and non living
UNO [17]4 years ago
3 0
Viruses are not always classified as living cells because they cannot live independently. They rely on a host to provide all resources to live, without a host they are in a dormant, near dead like state. Therefore it has to define a virus as dead or alive as it may or may not have a host.
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Examine the following scenario: A population of small fish lives in a lake (Lake A).The dark-colored fish are the ancestral phen
Vedmedyk [2.9K]

Answer:   3- mutation, natural selection, migration

Explanation:

1-genetic drift, mutation, natural selection

2-mutation, founder principle, bottleneck effect

3-mutation, natural selection, migration (gene flow)

The correct answer for this question is" #3.mutation, natural selection, migration (gene flow)." The sequence of evolutionary mechanisms which have come into effect in each event is that of mutation, natural selection and migration. There is a steady rise in the population of bright-colored fish. Both populations thrive.

6 0
3 years ago
Which does the autonomic nervous system most directly control?
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Involuntary action in body
7 0
3 years ago
A biology student caught and tagged 50 trout in a small lake. After two weeks, the student caught another 40 trout and found tha
Vlad1618 [11]

The best estimate of the population of trout in the lake is 500 individuals.

The low number of tagged trout recaptured may be because the tags slipped off.

This possibility can be reduced if the student used tags that does not slip off easily.

<h3>Mark and recapture method</h3>

The formula for calculating the estimated number of individuals in the population is given as:

  • N = (M*C) / R

where:

  • N = estimated Number of individuals in the population
  • M = number of individuals captured and Marked
  • C = total number Captured the second time (with and without a mark)
  • R= number of individuals Recaptured (those with a mark)

Calculating the estimate trout population:

N = (50*40)/4

N = 50

Therefore, the best estimate of the population of trout in the lake is 500 individuals.

The low number of tagged trout recaptured may be because the tags slipped off.

This possibility can be reduced if the student used tags that does not slip off easily.

Learn more about mark and recapture method at: brainly.com/question/10646744

6 0
2 years ago
A trait that can mask another trait is known as a
ludmilkaskok [199]
A trait that can mask another trait is known as a dominant trait.
3 0
3 years ago
Which one of the following is an example of the chemical modification of an active pharmaceutical ingredient? Group of answer ch
Alexeev081 [22]

Answer: Combining a basic API with citric acid to produce the citrate salt of the API.

Explanation:

Chemical modifications refers to the processes that involve changes in the general composition of drugs to produce another entity with different chemical properties.

From the answer, Basic API combine with citric acid to produce the citrate salt of API which have different chemical properties from the reactants.

8 0
3 years ago
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