Biology, 29.06.2019 18:30 kyliefetters11
Biosphere ii is a huge dome-covered self-contained structure located outside tucson, arizona. it was built to try to duplicate earth's biosphere and ecosystems in miniature and to use the information gained from the experiment to design similar habitats on the moon and mars. the habitat contained small versions of many of earth's ecosystems, including an ocean with a coral reef, mangrove wetlands, a grassland, a desert, an agricultural system, and a human habitat. eight men and women were sealed inside the habitat for a proposed two-year stay. the air, water, and food for the "biospherians" all came from inside the sealed habitat, and their only contact with the outside was through computers and telephones. before the two years were up, however, the experiment failed. supplemental oxygen was pumped into the facility, and food supplies were provided through the airlocks. what caused the failure of the experiment? it was traced to nutrient pollution. the soil in some of the biosphere ecosystems was unusually rich in nutrients. these excess nutrients caused a huge population explosion in decomposer bacteria, which led to oxygen depletion.
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Biology, 21.06.2019 19:40
What does it mean for a cell membrane to be selectively permable
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Biology, 21.06.2019 20:00
Can you identify which of the following groups of organisms are, or are not, populations? a. the american bison (bison bison) and grey wolves (canis lupus) currently living in yellowstone national parkb. all of the rainbow trout (oncorhynchus mykiss that) that have ever lived in lake eriec. the group of american bison (bison bison) currently living in yellowstone national parkd. a group of calliope hummingbirds (selasphorus calliope) and a group of rufous hummingbirds (selasphorus rufus) living in the same new hampshire woodse. the northern cardinals (cardinalis cardinalis) living on opposite shores of lake champlain f. all of the whales currently living in the atlantic ocean off cape cod, massachusetts
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Biology, 22.06.2019 12:30
This is the interaction of two organisms where one is and the other is neither nor harmed.
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Biosphere ii is a huge dome-covered self-contained structure located outside tucson, arizona. it was...
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