Which of the following describes how biological chemicals provide evidence to support that life changes over time?

a) some animals exhibit similar structures, possibly due to a common ancestor

b) some animals exhibit similar stages of embryonic development

c) some animals exhibit structures that are no longer used for any purpose

d) some animals exhibit similar proteins

it would be A because of the bone. bone, many bone structure that mainly every animal shares showing that we all came from common ancestors.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.