You notice mayfly larvae trying to emerge from a stream being slowed down when they reach the surface. why might this be?

Which flexible structure that supports the nerve cord and led to the backbone

Which organelles are labeled d, and what is one feature that distinguishes them from the other labeled organelles chloroplasts the only organelles that produce sugars from sunlight mosomes, only found in animal and bacterial cells centricles only found in animal cells mitochondra, the only energo-generating structures found in cells

What are examples of the plant life and animal life that can be found in each type of terrarium