Which of the following is true of ecological succession? A-pioneer organisms move into new communities first. B-primary productivity decreases as succession proceeds. C-secondary succession takes place within new communities with no previous soil. D-all of the above.
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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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Grasses--> mice--> cats--> coyotes suppose 10,000 units of energy are available at the level of the grasses. what is the total number of energy units lost by the time energy reaches the coyote?
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Which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton
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Why has two different alleles for the same trait?
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Which of the following is true of ecological succession? A-pioneer organisms move into new communiti...
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