What part of your brain controls all mental activities?

brain stem

medulla

cerebellum

cerebrum

Mutations within an organism can occur in body cells or reproductive cells. Which type of mutation is seen in a sperm cell but not in a skin cell? somatic mutation missense mutation nonsense mutation germline mutation

Two natural plant products, vinblastine from the rosy periwinkle and paclitaxel (taxol) from the pacific yew, have been used successfully in the treatment of a wide range of cancers.

What is the purpose of the circulatory system?

What is Found in rocks that are 3.5 billion years old?

Explain the impact a flood would have on a farm and its soil.

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.