A-similar bones are the same size in all animals. B-only quadrupeds need the humerus bone.
C-the organisms have common ancestors.
D-some bones in the skeleton have immovable joints.

the correct option is option a

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.

c is the answer to this question. altitude affects the weather because air molecules evaporate.