What is the structure labeled e in the diagram below?

a . nucleus

b. cytoplasm

c. ribosome

d. mitochondrion

b: cytoplasm

ignore this bit it allows me to summit my question

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.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.