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RUDIKE [14]
3 years ago
8

How do scientists know when life began?

Biology
1 answer:
Ronch [10]3 years ago
4 0
Scientists so far haven’t managed to figure that out .
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A passenger plane is flying above the ground. Describe the two components of its mechanical energy.
solmaris [256]
 kinetic energy and potential energy i believe
Have a good day :)
6 0
3 years ago
Mitosis can occur in both haploid and diploid cells, but meiosis cannot occur in haploid cells. Why not?.
allochka39001 [22]

Mitosis can occur in both haploid and diploid cells because it is equational division where the number of chromosomes remain the same after division. But meiosis cannot happen in haploid cells because it is reductional division and haploid cells do not have any extra copy of chromosomes to be halved.

Mitosis is the cell division where the number of chromosomes do not change after cell division. It usually happens in the somatic cells of the body. Cancer cells also undergo mitosis

Meiosis is the cell division where the number of chromosomes are halved after cell division. The process of meiosis occurs in two phases: meiosis I and meiosis II. The germ cells of the body undergo meiosis.

To know more about mitosis, here

brainly.com/question/26678449

#SPJ4

4 0
1 year ago
A virus
irga5000 [103]

Answer:

The correct option is C. A virus contains RNA or DNA in a protein coat.

Explanation:

Viruses can be described as tiny particles which are able to incorporate their genetic material into a host. Many viruses can be destructive to the host cells.

The structure of a virus includes DNA or RNA which is enclosed in a structure known as an envelope or capsid. The envelope or capsid is made up of proteins. Some viruses also have a tail.

The capsid of a virus usually remains outside the host cell and it injects its viral genome into the host cell. The DNA or RNA o the virus then incorporates in the host cell.

4 0
3 years ago
Read 2 more answers
The amount of energy your body uses to maintain body functions during complete rest at room temperature is called
lord [1]

Metabolism (aka basal metabolic rate)!

How I remember this is the amount of energy someone in a coma would need to maintain a healthy weight

Hope this helped!

~Someone who loves Shawn Mendes very much

7 0
3 years ago
Which is an example of a behavioral adaptation? Birds migrating in the winter a ducks's webbed feet a polar bears thick fur a ga
Mrac [35]
Birds migrating in the winter would be a behavioral adaptation. The rest of the adaptations would be structural or physiological because they are controlled by mutations in the DNA. <span />
3 0
3 years ago
Read 2 more answers
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