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castortr0y [4]
3 years ago
9

___________ are chemicals produced by the body, such as the brain, and can change moods and actions and even resemble some recre

ational drugs.
Biology
1 answer:
Neko [114]3 years ago
6 0

Answer:

serotonin

Explanation:

Recreational drug are drugs taken for enjoyment, or leisure purposes, they are drugs taken to altered state of emotions for pleasure, by changing the feelings, and emotions

examples are Alcohol, cigarette and cocaine

Serotonin is a chemical  induced in the human body due to drugs taken. It help regulate emotions, feelings, appetite and digestion, sleep, and memory.

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4. Describe similarities and/or differences in compartmentalization between prokaryotic and eukaryotic cells. 5. Sketch the proc
Mrac [35]

Answer:

Eukaryotes:

-Organisms with a well defined nucleus are known as eukaryotes. such cells are called as eukaryotic cells.

- Their nucleus is enclosed within the nuclear membrane.

- They do not posses a mitochondria.

- The cell wall is the outer most layer of a eukaryotic cell (only plant cells have a cell wall)

- The cells are divided by a process called mitosis.

Eg: Plants, Animals.

Prokaryotes:

- Organisms without a well defined nucleus are known as prokaryotes. Such cells are called as Prokaryotic cells.

- They lack nuclear membrane.

- Mitochondria, Golgi bodies, chloroplast and lysosomes are absent.

- The genetic material (DNA) is present on the chromosome.

Eg: Every organism coming under the kingdom monera.

Explanation:

7 0
2 years ago
However, energy flows in direction?
Pani-rosa [81]
All energy flows linearly; that is, in one direction. There are several basic forms of energy, including kinetic, potential, heat, chemical, electrical, electrochemical, electromagnetic, sound and nuclear.
5 0
2 years ago
Muscular force exerted as a muscle shortens is best classified as
Dominik [7]

muscle contraction..

3 0
2 years ago
Which of the following statements is not true?
ser-zykov [4K]

Answer:

c. False

This statement is incorrect because the DNA of bacteria is circular without histones.

Explanation:

a. True

Some archaea have very specific lipids in their membrane. Differently of the bacterias that have usual lipids in their membranes.

b. True

Archaebacteria do not have peptidoglycans in their cell wall

d. True

Methanogenic archaeobacteria are those that use carbon dioxide and hydrogen to produce methane. They are found in the digestive system of ruminants, sewers and swamps.

8 0
3 years ago
According to the big bang theory the universe was once a very
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According to the Big Bang theory, the universe was once very dense and is now expanding. 
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