Answer:
Population size of elk increased while the population of aspen tree declined.
Explanation:
As per question, removal of wolves from the system would result in increased elk population due to absence of its predator (wolves). The increased elk population would extensively feed on shrubs and trees like aspen and cottonwood trees. This would cause decline in population size of these shrubs and trees.
Answer:
1. A-C-G-G-T is <u>duplication</u>.
2. C-G-T is <u>deletion</u>.
3. A-G-C-T is <u>reordering</u>.
Explanation:
Your original sequence is ACGT. You compare the original sequence to the 3 mutations.
1. There 2 G's now, which means that the G has been duplicated.
2. The A is now gone in the front of the sequence.
3. The C and G were switched.
Exchange of gases in fish is very efficient because of: the large surface area of the gills. the large surface area of the blood capillaries in each gill filament. the short distance required for diffusion – the outer layer of the gill filaments and the capillary walls are just one cell thick.
Answer:
The tall parent was heterozygous
Explanation:
If tall height is dominant to short height the only genotype possible for short height is hh, while there are two possible genotypes for tall height, Hh and HH. When HH is crossed with hh all the offspring are Hh, but if Hh is crossed with hh, a quarter of the offspring is HH, a quarter is hh and half is Hh. If the tall pea plants were HH there would only be tall offspring, but because there are some short offspring we know that the tall pea plants must have a genotype of Hh.
The answer is
letter A.
<span>
In the
evolutionary sense fitness refers to the measure of reproductive success of an
individual or of organisms in general. Those organisms that leave the largest
number of mature offspring are the fittest. Fitness can be achieved through survival
or mortality selection, mating success or sexual selection, and family size or
fecundity selection. Fitness is critical for a species’ survival and is a major
adaptation that all organisms do through a long period of time. <span> </span></span>
