Paleontologists can definitively conclude whether dinosaurs were endotherms.
a. true
b. false

The correct answer is option b. "False".

Explanation:

There is still not definitive evidence that let paleontologists conclude whether dinosaurs were endotherms, in other words, warm-blooded animals able to heat themselves without the sunlight. Actually, evidence suggest that dinosaurs' fast pace to growth did not allowed them to be neither ectotherms nor endotherms. The most accepted theory is that dinosaurs occupied a middle ground called "mesotherms".

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.