What type of mutation causes sickle-cell anemia?

a. deletion

b. insertion

c. frame shift

d. substitution

Which are two ways a population can decrease in size a) immigration and emigration b) increase death rate and immigration c) decrease birthrate ans emigration d) emigration and increase birthrate

What 3 animals be affected if owls were removed from the food chain

Where in the cell was the ATP produced? in mitochondria in chloroplasts in cytoplasm in water

How can scientist determine the absolute age of rocks

1. How do different natural phenomena change the surface of the Earth over time?

How is it that the heartworm is able to multiply in numbers at such a fast rate?

Ground squirrels are found in many areas of the United States. They live in underground burrows and are often attacked by birds of prey, coyotes, and boBCats. Which of the following is a limiting factor for a ground squirrel population?

10. Which of the following is an emerging dis- ease that was unknown 50 years ago? a. malaria b. dengue fever C. Lyme disease d. schistosomiasis

You eat a large meal and then hike up a hill. What kind of energy transformation is your body performing? A. Chemical energy to kinetic energy and nuclear energy B. Potential energy to sound energy and nuclear energy C.

Which nervous systems balance each other to provide homeostasis?