Question: Choose your answer.

A food chain is shown. Sunlight -> Grass -> Rabbit -> Snake. What is the abiotic factor in this food chain?
My Answer: Sunlight

Question: Choose your answer.

Which factors can have the greatest effect on the health of a river system?
My Answer: nitrate levels and turbidity

Question: Choose your answer.

Tigers and household cats are members of the same family; however, their sizes are vastly different. What is the cause of this difference?
My Answer: genetics

Question: Choose your answer.

Doctors have determined that each of these factors could cause heart disease in humans except
My Answer:
intense exercise that increases the heart rate.