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Viktor [21]
3 years ago
13

Who propounded Abiogenesis?​

Biology
1 answer:
cupoosta [38]3 years ago
8 0

Answer:

<u>Please Mark As Brainliest!!</u>

The Oparin-Haldane theory

Explanation:

In the 1920s British scientist J.B.S. Haldane and Russian biochemist Aleksandr Oparin independently set forth similar ideas concerning the conditions required for the origin of life on Earth.

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If a cell was observed under the microscope and found to have a rigid cell wall and be green in color that cell is most likely a
sergejj [24]

Answer:

A plant cell is your answer

Explanation:

prosses of elimination

animal cell - dose not have a cell wall

algae cell - its cell wall has more of a bubblelike appearance

bacterium cell - cell wall is not rigid, and color can vary it has more of a lose thread type look.

plant cell - has a green cell wall that is rigid <--- this is your answer

8 0
3 years ago
Organisms typically have only one copy of each allele. true false
lawyer [7]
It's going to be true 
3 0
3 years ago
Read 2 more answers
What is the best way to describe active transport?
andriy [413]

active transport. The movement of ions or molecules across a cell membrane in the direction opposite that of diffusion, that is, from an area of lower concentration to one of higher concentration. Active transport requires the assistance of a type of protein called a carrier protein, using energy supplied by ATP.

3 0
3 years ago
Name one type of mutation which could result in cancer
Nuetrik [128]

Answer:

Hey, here is your answer mate

Explanation:

These mutations may eventually lead to cancer, particularly mutations in tumor suppressor genes or oncogenes. Mutations in DNA repair genes may be inherited or acquired. Lynch syndrome is an example of the inherited kind. BRCA1, BRCA2, and p53 mutations and their associated syndromes are also inherited.

Hope you understand

6 0
3 years ago
Most sperm cells die in the vagina when entering the female's body because Most sperm cells die in the vagina when entering the
taurus [48]

Answer:

of the low pH of the vagina.

Explanation:

The pH of the vagina is maintained at highly acidic levels to prevent the germ buildup. The range of vaginal pH is around 3.8 to 4.5. The very low pH of the vagina creates a hostile environment for sperms and most of the sperms are killed as they enter the vagina due to the acidic pH.

Apart from supplementing the sperms with energy, cervical mucus serves to protect the sperms from the hostile conditions of the vagina. The cervical mucus has an alkaline pH at or near the ovulation to protect sperms from acidic pH of the vagina and to facilitate fertilization.

6 0
3 years ago
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