Biology, 05.08.2019 01:40, bree1926

Which is a nonliving factor that defines a spruce-fir forest ecosystem?

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Biology, 22.06.2019 00:00, Blbyrd1287

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

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Biology, 22.06.2019 00:50, bob4059

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

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Biology, 22.06.2019 08:20, lizbethreyes5725

Which characteristics are typical of a human population in the postindustrial stage?

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Biology, 22.06.2019 18:30, maleja2038

12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.