In the Rocky Mountains, one species of chipmunk, Eutamias umbrinus, lives in coniferous forests at high elevations and a second species, E. dorsalis, lives in open woodlands at lower elevations. They meet at the transition between the habitats, but overlap very little. Propose two alternative hypotheses that could explain why E. umbrinus does not live at lower elevations. Describe the experiments you would carry out to test each of these hypotheses. Discuss the possible results of each experiment and how they would support or contradict each hypothesis.

i believe it would be c: tons.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.

her affection for her parents makes her an especially sympathetic character.

we solve the problem using the hardy-wineberg equation.

let us start with the homozygous recessive proportion of individuals with sickle cell anaemia,

we have the proportion as q² = 0.25.

∴ q = 0.5 (frequency of hbs in population)

further,

solving for the frequency of normal cell by using the fact that,

p + q = 1

∴ p = 1 - 0.5 = 1 - 0.5 = 0.5

now we can calculate 2pq in p² + 2pq + q², which is the frequency for heterozygous carriers of sickle cell anaemia,

∴ 2pq = 2 x 0.5 x 0.5 = 0.5

and the homozygous normal cell individuals proportion is given by the expression,

∴ p² = 0.5² = 0.25

hence, the carriers for sickle cell anaemia are in proportion, 0.5, or 50%.