It's 7:00 at night and you haven't eaten anything since lunch. Which part of your brain is telling you that you're hungry? A. brain stem B. thalamus C. hypothalamus D. medulla oblongata

Which of the following statements about the extent of earth's global ocean is correct? A It covers more than twice as much of earth's surface as land covers. B It covers more than three times as much of earth's surface as land covers.

The double layer of phospholipids is called a?

5. Which of the following is NOT likely to happen during the transition to renewable energy sources? a. People will rely less on centralized power systems. b. There will be a dramatic reduction in use of fossil fuels. c.

Why do biologists focus on the issue of adaptation of species? Biodiversity is viewed as an important indication of the health of ecosystems.

Which of the following statements describes a cell that is considered to be differentiated? A) The cell appears to be different from the surrounding cells. B) The cell replicates by the process of mitosis.

What are the major differences between prokaryotic and eukaryotic cells?

What do scientist study to see the genetic changes that occur through generations

What makes pelicans and penguins different? a. pelicans are flightless birds. b. pelicans spend about three-quarters of their lives in the water. c. penguins have large bills with a loose and elastic pouch. d. penguins have wings shaped for swimming.

What is likely to happen if you only offer generic attributes and qualities as examples of your qualification for a position?

When organisms convert forms of energy what usually results