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VARVARA [1.3K]
3 years ago
15

25. Which of these does natural selection work on?

Biology
1 answer:
galina1969 [7]3 years ago
8 0
The answer is B. Natural selection will find a way to affect one, then that one will affect many others.
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The Punnett Square shows a cross between a mouse with black fur whose genetic makeup was BB, and a mouse with white fur whose ge
NNADVOKAT [17]

Answer:

There must have two white genes to become white.

Explanation:

In order to a mouse to have white fur, both of their genes must be white. In the punnet square, you have a Black (BB) and a white (bb). If they have offspring, all of them have one black (Dominant) and one white (recessive). The black gene overpowers the white gene, so they come out black.

7 0
3 years ago
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A 2325-g (5 lb 2 oz) male newborn is delivered at 33 weeks' gestation; apgar scores are 7 and 8 at 1 and 5 minutes, respectively
denis23 [38]

The right answer is Child abuse.


Cannabis (marijuana) during pregnancy is dangerous for the fetus

During pregnancy, the active component of cannabis, which is THC (tetrahydrocannabinol), can go into the placenta and affect the fetus, including its birth weight (like the case in the question here) and brain function, reducing the baby's IQ and attention capacity.


Depending on the type of drug and the quantity consumed, it is also possible that the baby suffers from weaning at birth, that is to say from deprivation (inconsolable crying, irritability, tremors, feeding difficulties, etc.). .


Cannabis may also have longer-term effects in children (learning disabilities, behavioral problems, hyperactivity, etc.).


5 0
3 years ago
Which structure can be used to identify the cell as an eukaryotic cell?
Zielflug [23.3K]

Answer:

The Cell Membrane

Explanation:

Eukaryotic Cells are membrane-bounded, Prokaryotic cells are not.

Hope this helps!

5 0
3 years ago
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Chemicals produced by the glands are called ________________.
valentinak56 [21]

Answer:

Hormones!

Explanation:

4 0
3 years ago
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The division of a bacterial cell into two daughter cells (called binary fission) is accomplished by a protein called FtsZ. FtsZ
Katena32 [7]

The question is incomplete and the complete question is:

For each space in the table, drags the appropriate label to indicate if the statement is true or false for each group of organisms

1. Cells divide by constriction of a ring of protein

2. The presence of a cell wall prevents the cell from diving by constriction

3. Tubulin or tubulin-molecules function in binary fission(in bacteria) or cytokinesis(in animals and plants)

Answer:

1. Bacteria: true , Animals: true  and Plants: false

2 bacteria: false , Animals: false and Plants: true

3. Bacteria: true , Animals: false  and Plants: true

Explanation:

Option-1

Bacteria: true  as the protein FtsZ is involved in the binary fission and the formation of constriction.

Animals: true  as the microtubule ring is formed

Plants: false  as no constriction of the ring is formed instead of a cell divides by plate formation

<u>Option-2</u>

<u> </u>Bacteria: false  as the ring is formed and no cell wall is involved

Animals: false as there is no cell wall in the animals

Plants: true as the cell wall divides by plate formation

Option-3

Bacteria: true  as FtsZ is involved in the ring formation which is tubulin like structure

Animals: false  as the actin and myosin are involved in a ring formation

Plants: true as tubulin are involved

5 0
3 years ago
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