Practice 3 Click and select the details that represent a
Scanning Electron Microscope
F Creates extremely
detailed images
A. Uses tenses
G. Can't view live
organisms
B. Magnifies Objects
H. Uses electrons to scan
the image
C. Creates a stunning, 3D
image
1. Uses a computer to
generate the image
D. Illumination is needed
J. Has a vacuum tube
E. Can only view surface
of objects
K. Magnifies to 40x
SUBMIT

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.

Will mark brainliest. (20 points) many have pigments structures known as eyespots that detect direction of light. a. b. archaebacteria c. protists d. none of the above

What if the yeast were extremely active and produced more than 100ml gas. would you know? why/why not