This rabbit lives where it gets very cold in the winter. it does this easily because it is an endotherm. being an endotherm or warm-blooded has its advantages and disadvantages. what is one advantage of being an endotherm?
a) an endotherm can be active any time of the year or day.
b) endotherms are only able to survive in certain climates.
c) an endotherm does not need to eat very often and can avoid starvation.
d) an endotherm must eat more food than an ectotherm to maintain body temperature.

The correct option is A) An endotherm can be active anytime of the year or day.

Explanation:

Endothermic organisms can be described as organisms which have the ability to maintain their internal temperature even when the conditions outside are not favourable. Such organisms are also known as warm blooded organisms. One benefit of maintaining temperature is that these organisms can be active at any time of the year. In contrast, those organisms which cannot maintain their internal environment have to hibernate during unfavourable conditions.

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

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