Recall that photosynthesis consists of two sets of chemical reactions. which of these describes the energy conversions that occur during the light-independent reactions?
a. light energy à chemical energy
b. chemical energy à chemical energy
c. chemical energy à mechanical energy
d. mechanical energy à mechanical energy

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.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.