A true statement about the circulatory system is A. The pulmonary arteries carry oxygen-rich blood from the heart to the lungs B. The pulmonary veins carry oxygen-rich blood from the lungs to fed heart C. The pulmonary arteries carry oxygen rich blood from the lungs to the heart D. The pulmonary veins carry oxygen poor blood from the heart to the lungs

the answer is D

Explanation:

All of the other answers are wrong because it was oxygen poor blood not oxygen rich Blood which makes D the right answer

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.