Answer:
They increase the levels of catecholamines—a family of brain chemicals that includes dopamine.
Explanation:
Stimulants are a class of drugs that “stimulate” the body's central nervous system, which includes the brain and spinal cord. They increase the levels of catecholamines—a family of brain chemicals that includes dopamine. These chemicals are used in the brain processes to signal reward and motivation.
Newton's Law of universal gravitation is:
F
=
G
m
1
m
2
r
2 [1]
For the picture of the answer : https://socratic.org/questions/what-is-the-force-between-two-touching-grapefruits-each-with-a-radius-of-0-080-m
Answer:
an exchange of homologous segments between homologous chromosomes.
Explanation:
Crossing over happens during meiosis, during this process the two homologous chromosomes cross over each other, resulting in the exchange of genetic information giving rise to a mixture parental genetic materials.
Answer:
Malnutrition prevents cellular respiration from occurring, therefore preventing cellular reproduction, therefore preventing the growth of the body aka stunting growth.
Explanation:
SCIENCE
The amino acid Histidine, or His.
