Gene duplication and divergence is thought to have plated a critical role in the evolution of increased bilogical complexity

a. True

b. False

Think about water and how it rolls up on a beach. think of all it's qualities. is it alive according to the characteristics of life? why or why not?

Which represents an ameba engulfing bacteria

Explain what is ment by the term transpiration

Which statement describes heterogeneous mixtures? They are made up of two or more pure substances that are not chemically bonded together. They appear uniform, like a pure substance. They have fixed ratios between their components.

How would a sudden decrease in the shrew population affect the barn owl population?

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?

The modern classification system is based on A - putting organisms into categories based on where they live. B - putting organisms into categories based on how they reproduce. C - putting organisms into categories based on similar characteristics.