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Nastasia [14]
2 years ago
15

I need help on this question .............

Biology
2 answers:
34kurt2 years ago
7 0

Answer:

genetic mutation

Explanation:

they ancestors changed just a lil

alexdok [17]2 years ago
5 0

Answer: its is mutation genetic mutation

Explanation:

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W

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Because when the sale starts invited it starts out as a singular cell, then divide itself into two and it continues to divide itself. So the answer that would make the most sense would be W because it starts out with only two.

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Which of the following results from cutting down trees
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Describe the organism that scientists believe was responsible for changing the composition of the early atmosphere. What was it
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Which part of the cell theory do these results most support:
Vlad1618 [11]
<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>_____________________________________</h2>

\huge\textbf{Cell Theory}

the Cell Theory was give by German scientists, Schleiden and T.Shwan in 1839. It stated that,

  • All organism are composed of one or more cells

  • The cell is the structural and functional unit of life
  • It is a de novo structure, that means it COULD arise from non living thing which was incorrect.

It was corrected by the German pathologist  Rudolf Virchow in 1855. He made a convincing case, corrected and added the third point of the cell theory. It is,

  • Cells can arise only by a division of pre-existing cell. It is <u>NOT</u> a de novo structure.

Cell theory brought a great evolution in the field of biology which established the function of organism is the result of activities and interaction of the cell units.

<h2>_____________________________________</h2>

\huge\textbf{Question:}

  • <u>Flask 1</u>: It is observed that there are no micro-organism, this is because the meat is sealed and no micro-organism could enter through it.
  • <u>Flask 2</u>: It is observed that there are micro-organism present because meat is not sealed but open.
  • <u>Flask 3</u>: As the S tube is used, the micro-organism are not able to reach the meat because of the curvy path

These observations support the  point that<u> cells could arise only by a division of pre-existing alive cells</u> because in Flask 1 when there were no micro-organism present so there was no organisms found so no micro-organism arised, In flask 3 the S tube was used so no micro-organism could reach the meat thus there were no organism there which could divide to reproduce. The flask 2 was open, so the micro organisms reached the meat so they divided which means Cells can only arise by a division of pre-existing cells.

<h2><u>_____________________________________</u></h2><h2>Best Regards,</h2><h2>'Borz'</h2>

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