<span>In gymnosperms, the seed coat develops from the integument. in angiosperms, the seed coat develops from the </span>integuments.
Answer:
(C) maleness results from the minimal presence of one Y chromosome
Explanation:
Human males have one Y and one X chromosome as their sex chromosomes. However, the human males with Klinefelter (XXY) syndrome have two copies of X chromosome as the human males but also have one Y chromosome. Similarly, human females have two X chromosomes as sex chromosomes but the females with Turner (XO) syndrome have only one X chromosome and the females with poly-X (XXX, XXXX) have more than two X chromosomes.
This means that the Y chromosome regulates sex in human beings. If one copy of the functional Y chromosome is present in the cells, the fetus will develop into a male. The absence of a functional Y chromosome will make the fetus develop into a female.
Social convoy
Social convoy refers to a group
of people who accompanies an individual on the journey of life. A social convoy
provides personal, familial, cultural, and even professional supports for an
individual. Family members usually comprise a part of social convoy and its
makeup changes over time.
The answer is d. Source water are River, streams, lake etc that provide drinking water
