Which organisms convert nitrogen into a form that is usable by humans?

A. Omnivores

B. Algae

C. Bacteria

D. Plants

What you think about the use of this form of energy, whether or not it would be worth using instead of fossil fuel for The United States and other. (Oceans-hydro power)

Carol eats 800 kilocalories a day to lose weight. She is 60 years old. Carol has been walking briskly 60 minutes daily for the past 2 months.

Definition: This is the unequal distribution of ions across a cell membrane. Example: The diffusion of oxygen into a cell across the cell membrane, from and area of high concentration to an area of lower concentration.

Which statement is true of the electromagnetic spectrum? A) The lower the radiant energy, the higher the frequency and the shorter the wavelength. B) The higher the radiant energy, the higher the frequency and the longer the wavelength.

In many cells, the adhesion to the extracellular matrix through integrins causes the activation of kinases in the cytoplasm. This suggests that: a. integrins promote the activation of signal-transduction pathways. b. integrins are kinases. c.

A population of Eastern Cottontail rabbits lives in a particular ecosystem. This population's major predator is the coyote and its major food source is vegetation.

1. Which number in a chemical formula tells you how many atoms of element you have? O A. Coefficient O B. Chemical symbol O c. Subscript O D. Capitals

Which statement best describes the cycling of carbon between the atmosphere and geosphere? A Precipitation and condensation increasing the groundwater supply B Glaciers melting due to an increase in global climate temperatures C Volcanic activity

What did George Buffon contribute to evolution

During this phase, chromosomes coil tightly, the nuclear membrane begins to breakdown, and the spindles begin to form. A. anaphase B. telophase C. prophase D. metaphase