The internal flow of rocks in their solid state is called
brittle fracture
d...
Biology, 06.12.2019 19:31, liyahheadhigh
The internal flow of rocks in their solid state is called
brittle fracture
ductile flow
shear flow
Answers: 1
Biology, 21.06.2019 19:30, womankrush538
Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.
Answers: 2
Biology, 21.06.2019 20:40, villafana36
Which of the following occurs after a natural or unnatural disturbance in an ecosystem
Answers: 1
Biology, 22.06.2019 02:00, baidentheodore617
Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat
Answers: 2
Biology, 22.06.2019 03:00, seahorse0
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)รขโฌโtwo 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
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