In order to use stem cell therapy for a patient with a blood disease who needs to regain the ability to form new blood cells, which of the following stem cell sources would be least effective? A. Bone Marrow

B. Umbilical Cord

C. Blood Supply

D. Brain

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.

not sure if this is what you'r looking for prokaryotes have organelles hope this out at least.