An organic compound consists of which of the following elements? A. carbon B. helium C. potassium D. all of the above

How do the circulatory, excretory and respiratory systems work together to maintain pH homeostasis?

Which term best describes the temperature and weather conditions of an organism's environment? biotic factors abiotic factors natural resources natural habitat

Basis on the fluid mosaic model of the cell membrane, which type of molecule can move passively across the membrane, without the aid of proteins

Which of these cities has the least change in seasons during the year

What are unicellular prokaryotes that live in dust?

Deanna explains to Wesley the different types of nitrogen in the nitrogen cycle. Choose the sentences that she includes in her explanation. Select all that apply. A. Bacteria fix nitrogen from ammonia gas. B.

What are three key factors that contribute to a female primate's success at feeding?

You breathe in more oxygen than you breathe out. And you breathe out more carbon dioxide than you breathe in. What type of change is oxygen turning into carbon dioxide? A. physical only B. chemical only C. physical and chemical

What is ATP? A: the energy of moving electrons B: an energy-rich substance that cells need to survive C: an acidic substance that makes muscles cramp D: an organism that uses fermentation to produce energy

Both insulin and glucagon are peptide hormones that target liver cells. The response of the target cells to each of these two hormones is opposite. This information implies that