Biology, 15.10.2020 06:01 tdahna0403
Explain the coin and feather experiment. what conclusion can be drawn from the experiment?
Answers: 3
Biology, 21.06.2019 22:30
Witch type of microscope is used to view very small cell components like proteins and dna?
Answers: 2
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.
Answers: 1
Biology, 22.06.2019 12:30
Are the layers of rock above and below the coal older or younger?
Answers: 1
Biology, 22.06.2019 13:00
Which type of landforms forms at the plate boundary as a result of divergent stress
Answers: 1
Explain the coin and feather experiment. what conclusion can be drawn from the experiment?...
Mathematics, 24.08.2021 05:00
Social Studies, 24.08.2021 05:00
Mathematics, 24.08.2021 05:00
Mathematics, 24.08.2021 05:00
Mathematics, 24.08.2021 05:00
Mathematics, 24.08.2021 05:00
Social Studies, 24.08.2021 05:00
Advanced Placement (AP), 24.08.2021 05:00
Mathematics, 24.08.2021 05:00
Mathematics, 24.08.2021 05:00
Chemistry, 24.08.2021 05:00