The helical shape of a protein forms at the ____________ level of protein structure. Fill in the blank(s) with the appropriate word(s)


ANS: secondary

Biology & Microbiology

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Endophytic fungi

a. are parasitic fungi that live inside the leaves and stems of most plants. b. are symbionts that live inside the leaves and stems of most plants. c. are parasitic fungi that live inside the cells of most animals. d. are fungi that live inside the cells of other fungi. e. cause disease in important grasses such as fescue.

Biology & Microbiology

What are the homeostatic effects of angiotensin II after hemorrhage? Choose all that apply.

A. Shuts down kidney activity B. Constricts arterioles C. Minimizes urine production via aldosterone production D. Stimulates production of erythrocytes E. Stimulates thirst F. Removes lactic acid

Biology & Microbiology

Blood calcium homeostasis is maintained by?

a. Calcium excreted or withheld by the kidneys b. Hormones that cause cells to deposit or absorb calcium on/from the bones c. Fat cells that excrete calcium via exocytosis d. liver hormones which remove or add calcium from/to the bloo

Biology & Microbiology

Moss is an example of what type of plant?

a) flowering plant b) seedless vascular c) nonvascular d) naked seed plant

Biology & Microbiology