What produces the sun's light and heat

5th planet from the sun

Choose the correct term (s) of reference for the digestive system. select one or more: gi canal alimentary canal digestive tract gastrointestinal tract all of the above are correct

Which of the following biomes most likely contains trees which have adapted to have very thick bark?

If meiosis produces haploid cells, how is the diploid number restored for those organisms that spend most of their life cycle in the diploid state?

Regions of the deep ocean characterized by smooth ocean floor are called

The structures found within the skeletal system perform different functions within the body. Which of the following is not a function of bones in the human skeletal system? a. store minerals c. move body parts b. regulate body temperature d.

Immediately after gastrulation: 1. The embryo forms a blastula 2. Sperm travel to the oviduct 3. The body axis of the embryo appears 4. The fetus' circulatory system begins to mature

Name the two functional groups in amino acids

Which of the following terms correctly describes a population that becomes divided into separate subpopulations that live in the same area? 1. Convergent 2. Sympatric 3. Allopatric 4. Geopatric

What are three environmental factors that can influence plant phenotypes