Biology, 17.03.2021 23:40 Onlytrillest
Use the Gizmo to test if mushrooms feed on living things. Describe your trials and results in your notebook or on the back of this sheet. What did you find?
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Biology, 22.06.2019 03:00
To answer this question, researchers studied populations of the dusky salamander (desmognathus ochrophaeus) living on different mountain ranges in the southern appalachian mountains. the researchers tested the reproductive isolation of pairs of salamander populations by leaving one male and one female together and later checking the females for the presence of sperm. four mating combinations were tested for each pair of populations (a and b)—two within the same population (female a with male a and female b with male b) and two between populations (female a with male b and female b with male a). the proportion of successful matings for each mating combination was measured. for example, when all the matings of a particular combination were successful, the researchers gave it a value of 1; when none of the matings were successful, they gave it a value of 0. then the researchers calculated an index of reproductive isolation that ranged from 0 (no isolation) to 2 (full isolation). the reproductive isolation value for two populations is the sum of the proportion of successful matings of each type within populations (aa + bb) minus the sum of the proportion of successful matings of each type between populations (ab + ba). the table provides data for the geographic distances and reproductive isolation values for 27 pairs of dusky salamander populations.
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Biology, 22.06.2019 08:20
Which of these parts of the membrane large moecules pass through it ?
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Biology, 22.06.2019 09:00
Were you able to observe the nucleolus in any of the cells if so which ones
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Biology, 22.06.2019 11:30
In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48
Answers: 1
Use the Gizmo to test if mushrooms feed on living things. Describe your trials and results in your n...
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