Match each extinction to its appropriate characteristic. 1. cretaceous-tertiary possibly caused by forest grow on earth's land surface 2. end triassic possibly caused by massive rifting of earth's surface 3. permian-triassic the earliest mass extinction on record 4. late devonian worst mass extinction in earth's history 5. ordovician-silurian killed off the dinosaurs
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Biology, 22.06.2019 07:00
Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome
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Biology, 22.06.2019 16:30
Which of the following may one conclude from a map that shows the average ph value of rainfall in the u.s.? acid rain is a more serious problem on the east coast. acid rain falls equivalently across the continental u.s. there are more factories on the west coast. the midwest has fewer forests than the rest of the u.s.
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Biology, 22.06.2019 16:30
Which of the following is an example of competition a. the leaves of a tree prevent a small shrub from getting sunlight. three species of birds feed a different heights in the same tree. b. three species of birds feed at different heights in the same tree c. zebra and giraffe’s feed on different grassland plants d. cats living in two different homes eat the same brand of cat food.
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Biology, 22.06.2019 20:30
For which of the following ions is the intracellular concentration typically higher than the extracellular concentration? a. sodium b. calcium c. magnesium d. potassium e. chloride
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Match each extinction to its appropriate characteristic. 1. cretaceous-tertiary possibly caused by f...
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