Biology, 29.10.2020 18:30 misswonderless
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(d) Soil organisms, such as mycorrhizal fungi, impact the rate of succession in ecosystems. Mycorrhizal fungi have a mutualistic relationship with various species of plants and
increase the plant growth and survival Sand dunes often lack mycorrhizal fungi and a researcher wanted to determine the effect of adding mycorrhizal species to sand on
disturbed beaches on grass growth. The researcher set up various mycorrhizal communities at disturbed beaches in different locations on the east coast of the United States.
Identify the independent variable in the study
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Biology, 21.06.2019 23:30
Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.
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Biology, 22.06.2019 21:00
An adult inhales about 6.0×10−4 m3 of fresh air during a breath. only 20% of fresh air is oxygen. assume the pressure in the lungs is 1.0×105 paand the air is at a temperature of 300 k. how many oxygen molecules are in each breath? a. 1.4x10^23 b. 2.9x10^21 c. 4.9x10^-4 d. 2.9 x10^25
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Biology, 23.06.2019 00:30
Npiranha, fish with large teeth represent the dominant trait. because the dominant trait masks the recessive trait, in a population of 1,000 piranhas, all with large teeth, we could expect about the next generation of fish to have small teeth.
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(d) Soil organisms, such as mycorrhizal fungi, impact the rate of succession...
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