Answers: 3
Biology, 22.06.2019 06:30
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
Answers: 1
Biology, 22.06.2019 07:00
Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs
Answers: 1
Biology, 22.06.2019 22:00
American scientist, linus pauling, was one of many scientists racing to discover the molecular structure of dna. pauling initially thought that the molecule was a triple helix. later, james watson and francis crick unveiled their double helix model, which turned out to be an accurate description of the molecule's shape. why did watson and crick succeed when pauling failed?
Answers: 1
Biology, 22.06.2019 22:30
Adehydrated patient has high water concentration in her urine and high adh concentration in her blood. which of the following is likely malfunctioning in the patient? a. pituitary gland b. urinary bladder c. kidney tubules d. circulatory system
Answers: 1
This is one -half of a chromosome; a rod-like structure made of DNA and proteins that forms one-half...
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