When a gazelle senses a predator, which action(s) are under voluntary, or conscious, control? Select all correct choices
A. running
B. faster heart beat
C. dilation of blood vessels supplying the
muscles
A
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Some species of bean bug, which are common pests on soybean plants, can acquire resistance
to a common herbicide by nurturing protective bacteria in their gut. The bacteria grow well in the gut, do not cause any harm, and receive all their nutrients from the bean bug. This is an example of __________.
a. commensalism b. mutualism c. predation d. parasitism
Which of the following is a component of the plasma membrane?
a. glycogen b. vesicles c. phospholipids d. ribosomes
Orphaned organelles get lipids using chaperones.
a. true b. false
Which of the following statements about early ideas of evolution is true?
A. Darwin sailed around Earth over a five-year period and gathered information that greatly influenced his thinking about evolution. B. Charles Darwin came up with the idea that species evolve. C. Aristotle thought that species evolved. D. Lamarck suggested the idea of natural selection.