Hormones -- such as melatonin and cortisol; the former signals the body to go to bed, while the latter signals for the sleeping person to wake up -- are created by physiological changes.
Answer:
The number of chromosomes in sex cell must be haploid (1n) as compared to body cell which is diploid(2n).
Explanation:
Body cells are diploid while the sex cells are haploid. We can say that sex cells contain half number of chromosomes as compared to body cells.
A - 3 bases at a time in the same direction
The feature that is created by deposition of the loosely packed and mineral-rich soil is Loess.
Loess is a loosely packed soil deposition due to blown wind of sediment rocks. The geography of loess is in between soil and clay. It is finer in texture than soil but has the coarse structure than the clay. This loess contains certain clay portions in order to hold the soil particles properly.
It can be mostly seen in Great Plains of North America, northern china, and other places around the world.
Answer:
chloroplasts
Explanation:
cuz chlorophyll: green pigment found in chloroplasts that absorbs light energy required for photosynthesis.
