A scientist crossed a tall pea plant with a short pea plant. Of the offspring, 13 were tall and 12 were short, write the ratio of each phenotype to the total number of offspring. Express the ratios as fractions

Tall offsprings: 13/25

Short offsprings: 12/25

Explanation:

According to this question, a cross between a tall pea plant and a short pea plant gives rise to the following:

13 tall pea offsprings

12 short pea offsprings

This means that a total of (13 + 12) = 25 offsprings were produced by this cross. To get the ratio of each phenotype to the total number of offspring, we say the number of each phenotype (tall or short) / total offspring the produced.

That is;

Tall offsprings: 13/25

Short offsprings: 12/25

In percentage, this can be represented as:

Tall offsprings: 13/25 × 100 = 52%

Short offsprings: 12/25 × 100 = 48%

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

the correct answer is:

a population changes in response to a change in the environment.