Answer:
Steps are given below.
1) Pollen lands on the stigma of the flower.
2) A pollen tube grows down through the style to the ovary.
3) A sperm cell fuses with an egg in the ovule.
Explanation:
First the pollens fall from anther of the male part on the stigma of the female part of the flower. After that, the pollen reached to the ovary through pollen tube. Then the sperm cells of male combine with the egg of female forming a zygote (seed).
The length of the man compare to the length of the yeast cell is : The man is Five hundred thousand (5 x 10 to the 5th power) times larger than the yeast cell.
Hello!
Homozygous offspring are offspring that have two capital or two lowercase letters or just one letter, while heterozygous offspring have one capital and one lowercase letter.
The ratio of Homozygous to Heterozygous offspring is 3:2.
Answer:
disruptive selection
Explanation:
Disruptive selection is the natural selection that favors two extreme phenotypes but does not favor the intermediate phenotype. Here, the survival and reproductive success of two extreme phenotypes are higher than that of the intermediate phenotype due to their higher fitness value in the prevailing conditions. The presence of deeper voices in males and less deep voices in females due to high and low levels of testosterone respectively represents the disruptive selection as the phenotype present at two extreme ends are favored.