A blood vessel with a thick layer of smooth muscle and elastic fibers is A. a vein. B. an artery. C. a capillary. D. the vena cava.

The rate at and the extent to which a vitamin is absorbed and used in the body is known as:

Which cell structurre is mainly responoible for releasing energy from food molecules in some single celled organisms?

This is the set of rules by which information encoded in genetic material (DNA or mRNA sequences) is translated into proteins (amino acid sequences) by living cells.

How would homeostasis be affected if the pancreas did not release insulin?

A characteristic of Ghana after 1992. A. a return to a one-party system of government B. an economy based solely on industry C. an increase in government instability D. advances in education and human services

What is the second largest ocean on Earth? Pacific Ocean Indian Ocean Arctic Ocean Atlantic Ocean

What is the potential energy of a rock that weighs 100 newtons is sitting on top of a hill 300 meters high?

How do Muslims show their belief in allah

How many brain cells are there in an average human brain?

It would be expected that a population geographically located where UVB exposure is maximal to have a skin tone that is A. very light. B. light. C. medium. D. dark. E. very dark