Melanophores are small pigments that are present in the dermis layer of the skin of a shark. They impart a gray color to the dorsal and lateral surface area of the shark. They help in background adaptation and countershading of the body, which makes a shark difficult to be seen.
Answer:
The cell body of a neuron is called SOMA. The soma or pericarion contains the nucleus surrounded by the cytoplasm; Inside them we find different types of organelles:
-Mitochondria
-A Golgi apparatus
-Smooth endoplasmic reticulum (REL)
-Nissi's body
-Cytoskeleton, formed by neurofibrils.
Answer:
Kepler's third law relates the semi-major axis of the orbit to its sidereal period. The major axis is the total length of the long axis of the elliptical orbit (from perihelion to aphelion).
Explanation:
A and C
Given two guinea pigs with genotypes Bb and bb.
We use a Punnett square to show the possible phenotypes.
B b
b Bb bb
b Bb bb
So there are two possible phenotypes, Black fur (heterozygous) and white fur (heterozygous recessive).
Answer:
Several homozygous recessive individuals leave the population.