Answer:
The correct answer is- make a prediction
Explanation:
A hypothesis can be defined as an explanation of any observation which can be confirmed by experiments and prediction is the guess about the future result of any observation.
As here a biologist hypothesized that the sound produced by frog is mating calls than the next step of the biologist would be to make a prediction about response of that mating call by female frogs. This is called hypothesis prediction method.
Therefore the right answer is- biologist will make a prediction.
If the ATP synthesis in the mitochondria of a plant's cells suddenly operated poorly the plant cells would die because they wouldn't extract enough energy from the glucose produced in photosynthesis.
Alleles that are neutral with respect to fitness may fluctuate in frequency
due to chance events.
<h3>What are Neutral alleles?</h3>
These are the gene variant in which natural selection doesn't affect the
spread and mostly aren't inherited.
In cases where they are inherited, they will either be lost or will replace all
other alleles of the gene as a result of chance events and not because of
natural selection.
Read more about Neutral allele here brainly.com/question/1503537
This is most likely the result of OXIDATION. When an apple is cut open, the cells of the apple are exposed to the atmosphere, the in built defense mechanism inside the apple that is supervised by certain enzymes react to this situation by reacting with oxygen and creating an oxidized brown layer which protects the apple from foreign bodies.