A bone cell that absorbs and removes unwanted bone tissue is an:

The person responsible for the current system of naming organisms is

What is a "pregnancy substitute"? why would someone take one?

Which of the following is not a result of hydrogen bonds? A. Two hydrogen atoms join together to form a molecule of hydrogen gas. B. An enzyme has a unique shape that allows it to bond only with specific molecules. C.

Where are the richest deposits of oil and natural gas most likely located? A.) deep zone B.) intertidal zone C.) Continental shelves

Which structure protects bacteria from being phagocytized by white blood cells? a. slime layer b. fimbriae c. cell membrane d. capsule e. All of the choices are correct. capsule

Which geochemical cycle involves mantle convection? Nitrogen Tectonic Hydrologic Carbon

Energy can be changed from one form to another. Changes in the form of energy are called energy conversions. In an automobile engine, fuel is burned to convert _energy into heat energy. The energy is then changed into energy.

Describe electron carriers and the electron transport chain.

Slice of cheese is 3.0°C and is sitting on a dish that is 3.0°C. If the dish and cheese are in a refrigerator that is set to 3.0°C, which of the following statements is true? a.

Some types of organisms can increase genetic variation through reproduction. They are able to combine the genetic material of two parents, rather than copying the genetic material of a single parent. Which organisms are capable of this?