Answer:
It’ll be answer D
Explanation:
Just did it on edg 2020 it’s right
The key evolutionary development of animals seen for the first time in sponges is that of Multicellularity. A Multicellular organism has a longer lifespan than an unicellular organism and since it has multiple cells, it can perform more functions. Sponges do not have distinct circulatory, respiratory, digestive, and excretory systems – instead the water flow system supports all these functions.
Answer:
movement corridors
Explanation:
Animal movement corridors are elongated, naturally vegetated parts of the landscape used by animals to move from one habitat to another.
C Fossils allow scientists to have an idea of the time scale that traits evolved.
