What do we call species like wolves who have impact on so many other
species, whether the effects are direct
or indirect?
nroducers

A keystone species

Explanation: This makes their presence especially important. For this reason, wolves are considered a keystone species. Wolves exert both direct and indirect effects on their ecosystem; influencing their prey, their prey influencing the plant and animal species beneath them, and so forth down the chain.

depends where

on my head

yes

on my legs

yes

on my

arms

yesh

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.