Abiologist counts the number of zebras in a population each year and notices an increase in the zebra population. which describes the biologist’s actions?
experimentation
inference
observation
interacting

The correct answer for above statement is:

observation

Explanation:

Observation is the act or method of accurately watching someone or something.

Observation is the active appropriation of information from a primary source. In living beings, observation engages the senses. In science, observation can also include the recording of data via the use of scientific instruments. The term may also refer to any data accumulated during the scientific action.

answer; /// i believe the correct answer is (reactants);

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.