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natulia [17]
3 years ago
8

On early Earth, what was referred to as the "primordial soup"?

Biology
1 answer:
Gennadij [26K]3 years ago
8 0
Primordial soup is a theory created by the biologist Alexander Oparin, it established that life originated in a pond or an ocean as a result of chemicals combinations produced by the earths atmosphere and some forms of energy to make amino acids, the building blocks of proteins, which would then evolve into all species
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What unit of light stimulates photoreceptor cells in the retina?
wel

Answer:

Photons

Explanation:

The retina is a thin layer (membrane) in the eye that receives light through photoreceptor cells that convert this light into chemical and nervous signals transported to the brain's visual center.

The photoreceptors in the retina are known as rods and cones. Rods detect motion and sare responsible for black and white vision, they are present in the macula. Cones on the other and, are responsible for central and color vision. <em>These photoreceptors absorb photons that trigger the membrane's potential of the cells.</em>

I hope you find this information useful and interesting! Good luck!

8 0
2 years ago
What kinds of tissues can be found with in the muscle in your body?
Annette [7]
Striated muscle, connective tissue (tendons, fascia, blood) nerve tissue all can be found in muscle tissue .Connective tissue, Epithelium, Muscle tissue, Neural tissue.
3 0
2 years ago
Which are electrical "nodes" of the heart? Check
mestny [16]

Answer:

sinoatrial node and atrioventricular node

5 0
2 years ago
As the size of a cell increases
Hoochie [10]

Answer:

The correct answers are-

a. Its metabolic demands increase.

b. It's surface area-to-volume ratio decreases.

c. Its ability to transport enough nutrients in and transport wastes out to meet cellular metabolic demands decreases.

Explanation:

As the size of a cell increases the surface area to volume ratio decrease. So a big cell has less surface area and small volume. Therefore surface area for transfer of metabolic substance per unit volume decreases so the cell's ability to transport enough nutrients in and transport wastes out to meet cellular metabolic demands also decreases.

But due to an increase in the volume of the cell the metabolic demand of cell increases because a larger cell requires more nutrients than a smaller cell to survive which can not be fulfilled efficiently due to less surface-area-to-volume ratio.

Therefore the correct answer is a, b, and c.

3 0
3 years ago
Deficiency in the number of white blood cells is known as
Elodia [21]
The answer to this question would be leukopenia.

Leukopenia is a condition where the total white blood cells count is too low. White blood cell is fighting the microbes, so decreased of their number might cause the patient immune system to be decreased to, leading to immunocompromised status.
3 0
2 years ago
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