The heat in earth's interior comes from which of the following sources?

A. The mantle

B. The sun

C. Breakdown of unstable elements

D. Meteorite impacts

Why do most leaves tend to appear green if they reflect green light?

If the formation of 38 molecules of ATP requires 266 kcal of energy and the complete oxidation of glucose yields 686 kcal of energy, how efficient is cellular respiration at extracting energy from glucose?

What is a relationship

4. What is the purpose of plant reproduction?

Extinction occurs when the environment changes and

Griffith, in his 1928 experiments, demonstrated that bacterial strains could be genetically transformed. The evidence that DNA was the "transforming principle" responsible for this phenomenon came later.

Is the organism Fern extinct

Where is fresh water found? Select three options, rivers oceans ice sheets water vapor coastal wetlands

A mineral that breaks along one or more straight lines exhibits which property ФωФ

Which of the following is a biotic factor? a. Parasites b. Sun c. Soil d. Temperature