Krebs and colleagues identified the intermediates in a series of experiments where they took short chain acids known to be in the cell and added them to enzyme extracts from eukaryotic sources. How would they know if a given acid was an intermediate?

c

explanation:

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

human didn't come from monkeys man i hate these stupid teachers