DNA replication occurs in the synthesis stage and is followed by the gap 2 stage
After pollination and fertilization following changes occur in a flower: (i) The petals, stamens, style and stigma of the flower fall off. (ii) Sepals dry up and hold the ovary. (iii) The ovules confined in the ovary develop into seeds.
Answer:
C
Explanation:
Resource availability may be the selection pressure, however, it will not lead to evolution. Evolution is by chance whereby offsprings accumulate mutations that result in phenotypic changes that may allow them to access other sources of food.
Answer:
Vestigial structures do not have a function, yet they are homologous to functional structures in related species. They are important because they provide clues to the ancestry of the organism. Many species look similar as embryos.
<span>The stapes is the third bone of the three ossicles in the middle ear. The stapes
is a stirrup-shaped bone, and the smallest in the human body. It rests
on the oval window, to which it is connected by an annular ligament.</span>