An organism that is killed and eaten by another is what

a predator or a scavenger

Explanation:

A true predator can be thought of as one which both kills and eats another animal, but many animals act as both predator and scavenger. A predator is an animal that hunts, catches, and eats other animals.

Scavenger. Animals that consume the carcasses of other animals that have been killed by predators. Decomposers.

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.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects