Which cells are more complex? (circle your answer) A. prokaryotic cells B. eukaryotic cells

What is gene flow in evolution.

Describe how a problem with a problem with the repiratory system could directly affect the cardiovascular system

How do phagocytes protect the body? A. They produce fever, which slows germ growth. B. They produce mucus that traps germs. C. They increase blood flow to infected areas. D. They eat infected and foreign cells.

How do classification systems change over time?

Populations of mosquitofish have diverged from each other in environments that are different, based on the presence/absence of a predator. Is this an example of allopatry or sympatry?

Fungal cell walls contain the carbohydrate

George, who is 60, couldn't understand why he was slowly gaining weight. He was eating the same amount of food that he had each day since he was 20 and he exercised regularly. What could explain his weight gain? A) His metabolism had slowed down.

Relate tissues to organs and organ systems. Give an example.

Which of the following is an example of a Global Environmental choice? A students deciding to ride bicycles to their school B Nations meeting to discuss the ozone layer C a Town Council considering a new nature Refuge D a family deciding to recycle

What is the wavelenght of a 1-kilohertz (kHz) sound traveling in water