Read this excerpt from Susan Butcher and the Iditarod Trail.

Which prediction is best supported by this detail from

text?

At last doctors from the hospital in Anchorage, Alaska.

almost one thousand miles southeast, answered. They

found 300.000 units of the serum among their supplies. It

was, however, the middle of winter in the frigid North. How

should they ship the serum?

Shipping serum from Anchorage to Nome in the

wintertime will be complicated and difficult

Three hundred thousand units of the serum will not

enough to vaccinate the population of Nome.

The doctors from the hospital in Anchorage will not

the serum until summertime.

The disease will spread from Nome to Anchorage be

the serum is able to be shipped.

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.

Asea turtle has washed up on a remote section of a beach. this known as a stranding occurs when a dead,sick or injured sea turtle washed up on the shoreline. which statment best explain why stranding should be reported immediately to local authorities

If there are 350 trout found in 200 square feet of a pond measuring 1000 square feet what is the estimated trout population of the pond? a. 1350 b. 1550 c. 1750 d. 2000