UESTION 22
The human population has been able to grow exponentially
due to man's ability to m...
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
Biology, 22.06.2019 05:00, noahmartinez3636
Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.
Answers: 2
Biology, 22.06.2019 06:20, shelbyp2003
You see a white marker with an orange circle and black lettering. what does this marker tell you
Answers: 1
Biology, 22.06.2019 17:00, gibbss80stu
What is one affect on the australian environment due to the introduction of non-native european rabbits
Answers: 1
History, 03.03.2020 08:21
Biology, 03.03.2020 08:21
Biology, 03.03.2020 08:21
Mathematics, 03.03.2020 08:22
History, 03.03.2020 08:22
Physics, 03.03.2020 08:22
Mathematics, 03.03.2020 08:22