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Question

Question
Hydras are animals related to coral and jellyfish. Hydras can reproduce sexually or asexually. Why would hydras avoid reproducing asexually when conditions are difficult? (1 point)
Responses

Reproducing more rapidly would be a good way to take advantage of plentiful resources.
Reproducing more rapidly would be a good way to take advantage of plentiful resources.

The lack of genetic diversity could mean that all of the hydras die, depending on the situation.
The lack of genetic diversity could mean that all of the hydras die, depending on the situation.

The high genetic diversity could mean that all of the hydras die, depending on the situation.
The high genetic diversity could mean that all of the hydras die, depending on the situation.

Reproducing more slowly would be a good way to take advantage of plentiful resources.
Reproducing more slowly would be a good way to take advantage of plentiful resources.
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Answer 1

The most appropriate response to the question of why hydras would avoid reproducing asexually when conditions are difficult is:

The lack of genetic diversity could mean that all of the hydras die, depending on the situation.

Asexual reproduction produces genetically identical offspring, which can be detrimental in changing or harsh environmental conditions, as the entire population may be susceptible to the same threats or diseases. By reproducing sexually, hydras can increase genetic diversity, which can enhance survival rates in challenging environments.

Answer 2

A parent bacterial cell is able to survive in the presence of the antibiotic penicillin. Subsequent generations from this parent will be _______ penicillin.(1 point)
Responses

dependent on
dependent on

killed by
killed by

resistant to
resistant to

vulnerable to

Answer 3

The correct response is:

resistant to

If a parent bacterial cell is able to survive in the presence of the antibiotic penicillin, it is likely that its subsequent generations will inherit this resistance to penicillin.

Answer 4

In binary fission, one cell reproduces into _____ cell(s).(1 point)
Responses

three
three

four
four

two
two

one

Answer 5

The correct response is:

two

In binary fission, one cell divides to produce two daughter cells.

Answer 6

Something that potatoes and bacteria have in common is that they both reproduce(1 point)
Responses

via binary fission.
via binary fission.

via vegetative reproduction.
via vegetative reproduction.

using tubers.
using tubers.

asexually.

Answer 7

The correct response is:

asexually.

Both potatoes (which can reproduce asexually through methods such as tubers) and bacteria (which typically reproduce asexually through processes like binary fission) can reproduce asexually.

Answer 8

In binary fission, DNA from the parent cell _________ before it produces daughter cells.(1 point)
Responses

coils up
coils up

produces cytoplasm
produces cytoplasm

moves toward one pole
moves toward one pole

replicates

Answer 9

The correct response is:

replicates.

In binary fission, the DNA in the parent cell replicates before the cell divides to produce daughter cells.

Answer 10

Which is the most likely explanation for a child exhibiting a heritable trait that neither parent exhibits?(1 point)
Responses

A mutation occurred, and the child exhibits a new trait due to the mutation.
A mutation occurred, and the child exhibits a new trait due to the mutation.

The parents have recessive alleles, and the child inherited a dominant allele.
The parents have recessive alleles, and the child inherited a dominant allele.

A grandparent exhibits the trait, and the child inherited it directly from that person.
A grandparent exhibits the trait, and the child inherited it directly from that person.

The trait is recessive, and the child inherited a recessive allele from each parent.

Answer 11

The correct response is:

The trait is recessive, and the child inherited a recessive allele from each parent.

In this situation, both parents can be carriers of a recessive trait (having one recessive allele and one dominant allele) and yet not exhibit the trait themselves. The child could then inherit the recessive allele from both parents, leading to the expression of the trait.