<span>Since mature red blood cells do not contain a nucleus, more room is available for Hemoglobin. It is a protein that is used in transporting oxygen and is extremely important for the body. </span>
I believe the correct answer would be Tapeworm and cat
I think a period of hot summers will affect the rabbit population in a positive way. This is because it will allow the population to increase in size, and get ready for the harsh weather to come throughout the rest of the year.
vasodilatation causes a decrease in blood preasure so the answer is (B)