Answer:
Its C
Explanation:
Twins mostly share the same genes and genes can't mutate after birth
Answer: Both vasoconstriction and vasodilation.
Explanation:
The mechanism that controls the blood flow to various parts of the body is vasoconstriction and vasodilation.
Vasoconstriction can be defined as the phenomenon in which blood vessels decrease in diameter to decreases, the pressure in the blood vessels also increases which in turn increases the blood flow.
Vasodilation can be defined as the phenomenon in which the diameter of blood vessels increases and the pressure in the blood vessels decrease and blood flow decreases.
This increases and decreases the blood flow so as to make the blood reach each and every part of the body.
Pollution would kill fish and other sea creatures. There would be no fish to catch and eat.
Answer:
Air pollution occurs when harmful or excessive quantities of
substances are introduced into Earth's atmosphere. Sources of air
pollution include gases (such as ammonia, carbon monoxide, sulfur
dioxide , nitrous oxides , methane and chlorofluorocarbons),
particulates (both organic and inorganic), and biological molecules .
Explanation:
Channels with a low gradient