I don’t not understand this question
answer is D
antelopes with muscular legs are able to outrun their predators better than antelopes with poor muscle tone. they lived to reproduce .
A continents size may move in the way of a current. But most of those are what the average person calls waves on a beach.
Answer:
fleas carried the disease and there were fleas on rats and the rats hid in ships going across the oceans and then ran out when the ships arrived to their destined place. the fleas then traveled to household pets such as cats and dogs and because those pets came in contact with humans thats how humans caught it.
Explanation: