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Skeletal muscles can only produce a mechanical force as they are contracted, but a leg flexes and extends while walking. how can muscles perform this task?
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In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -
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Which statement best describes how the nucleus, the rough endoplasmic reticulum, and ribosomes interact during protein synthesis?
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Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down
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Biology, 22.06.2019 16:00
Where is having brightly colored feathers that attract mates most clearly an adaptation for a bird? a. a forest with dense vegetation b. a sandy beach beside an ocean c. a snowy tundra with little vegetation d. a swamp with many hawks that eat birds
Answers: 1
Skeletal muscles can only produce a mechanical force as they are contracted, but a leg flexes and ex...
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