Answer:
d.
Explanation:
im working on this unit rn in school too
The answer is D the birds and the same bone structure but there beaks changed to eat different food so it can't be a or b and the song is just for mating and they are different species so the answer is D. (D)
Answer:
the distinguishable features of these creatures include moist, scaleless skin and cold-blooded. Amphibians absorb water and respiration occur through their skin.
The answer D best defines a cell.
Answer: A- Disruptive selection
Explanation: Disruptive selection increases genetic variation as the population begins to be more different when selection existing in nature chooses multiple phenotypes reaching the highest degree which each have particular benefits. However, they tend to make single-celled life form that has interposed characteristics to produce smaller offspring while allowing the organisms that have the highest degree of characteristics to produce more offspring.
