Which of the following would occupy the lumen of a transverse tubule?
A. extracellular fluid
B. cytoplasm
C. actin
D. myosin
E. sarcomeres
A. extracellular fluid
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Pseudonocardia is an organism that is hosted by
A. ants that cultivate fungal gardens. B. wood-eating insects. C. people with severe acne. D. marine invertebrates.
Which of the following is (are) true about predator–
prey coevolution? a. Each species exerts selection pressure on the other. b. Predators are selective agents that favor improved prey defenses. c. Prey with better defenses are selective agents that favor better predator hunting skills. d. All of the above are true. e. None of the above are true.
Mendel's monohybrid cross of Tt parents resulted in a tall to short ratio of Select one:
a. 3:1. b. 1:3. c. 1:2. d. 1:1. e. 2:1.
Which class of hormones produced in the roots of plants promotes cell division and growth and retards the aging of flowers and leaves?
A) gibberellins B) phytochromes C) cytokinins D) ethylene