Explain the differences between internal and external fertilization and the advantages and disadvantages of each reproductive strategy.

Are salt and soap nutrients or toxins for yeast? explain.

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food

Which term describes a normal value for something in the body? a.homeostasis b.set point c.feedback loop d.integration center