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siniylev [52]
3 years ago
12

which of the following provided evidence that led many scientists to accept Darwin’s theory of natural selection instead of earl

ier theories?

Biology
1 answer:
Gennadij [26K]3 years ago
7 0
I believe the answer would selective breeding. Natural selection is defined as breeding in order to create certain traits that allow for a better chance if survival among species. By people selectively breeding certain animals, they are able to see that traits can be changed through this process.
Hope this helps!
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According to Kolreuter's experiment, how could you ensure that pink flowers were always produced? Hint- Pink flowers are C'C", r
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Let,

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F₂ generation cross is shown in the image attached.

According to the cross, the probability of pink flower being produces 1s 50%

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The ability to make antibody quickly after second exposure to an antigen is due to?
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Which type of solution will cause cells to swell, or even to burst?
Inga [223]

Answer:

(b) Hypotonic solution

Explanation:

  • Any solution having lower osmotic pressure as compared to another solution is called as a hypotonic solution and the reason that a solution is hypotonic is that it has more water and lesser dissolved solute in it.
  • If a cell is placed in a hypotonic solution, the amount of water content in the cell would be lesser as compared to that of the solution and hence, the water will enter the cell due to which the cell will swell and may even burst.
  • The water molecules can enter the cell through the semipermeable membrane and in case of plant cells, the presence of cell wall may prevent it bursting, however, the animal cells lack the cell wall and hence if kept in hypotonic solution for long these cells may burst.
4 0
3 years ago
RNA differs from DNA in that RNA has?
Maksim231197 [3]

Answer:

C. a single strand and contains uracil.

Explanation:

DNA has 4 bases: adenine, cytosine, guanine, and thymine and is double stranded while RNA is one stranded and instead of thymine, it uses uracil.

Hope this helps :)

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