Which of the following examples demonstrates a mutualistic relationship?
a. mycorrhizae
b. rhizobia and root nodules
c. soil fungus and soil bacteria
d. mistletoe and its host
e. Both mycorrhizae and rhizobial/root nodules
E
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The pattern of locomotion used by gibbons and siamangs, in which they use their arms to hang below branches and
swing forward, is called ____.
a. bipedal movement b. peristalsis c. gliding d. brachiation e. orthokinesis
A population that is growing exponentially in the absence of limiting factors can be illustrated by which curve?
a. S-shaped b. J-shaped c. one that terminates in a plateau phase d. bimodal e. binomial
The region where filtration occurs is indicated by the letter(s) ____
a. A b. B c. C d. D e. A and D
Calcium ions are involved in muscle contraction by
A. manufacturing ATP. B. causing the muscle cell to depolarize. C. binding to the troponin-tropomyosin complex and exposing actin. D. repairing the damage done during contraction.