How does the energy available to organisms change within each feeding level of the pyramid? a. there is more energy available in the middle levels than in either the top or bottom level. b. all of the feeding levels have the same amount of energy available. c. there is less energy available in the bottom level than in the top level. d. there is less energy available in the top level than in the bottom level.

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; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;