Protists that produce spores are especially difficult to kill because they contain cell membranes that are resistant to common disinfecting chemicals
Indicate whether the statement is true or false.
Answer: FALSE
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If a person had most of his stomach removed in the course of treatment of ulcers, what would be the most probable negative consequence?
a. He would be unable to digest carbohydrates. b. His pancreatic enzymes would be unable to attack fat molecules. c. He would be unable to digest proteins. d. He would have to eat frequent, small meals. e. His duodenum would become highly irritated by stomach acid.
In transcription,
a. several RNA molecules are made from the same DNA molecule. b. a promoter sequence is needed. c. DNA produces messenger RNA. d. a specific enzyme called RNA polymerase is required. e. all of these occur.
Arm and leg muscles are arranged in antagonistic pairs. How does this affect their functioning?
A) It provides a backup if one of the muscles is injured. B) One muscle of the pair pushes while the other pulls. C) It allows the muscles to produce opposing movements. D) It allows one group of muscles to have fast-twitch fibers and the other to have slow-twitch fibers.
Which of the following hormones is mismatched with its producing gland?
A. pineal gland-melatonin B. ovaries-follicle-stimulating hormone C. thymus gland-thymosins D. ovaries-estrogen E. testes-androgens