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maxonik [38]
3 years ago
11

An independent variable is A. Directly changed by the experimenter

Biology
1 answer:
Neko [114]3 years ago
6 0
The answer is B because A is being changed .
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Most of the nucleated cells in a multicellular organism contain all of the genetic information for the organism. Which of the fo
vova2212 [387]

<u>Answer</u>: Sperm cell

<u>Explanation</u>:

Amongst all the 4 options given, only the Sperm cell is a gamete (sex cell) while all the three are somatic cells.

  • A <em>somatic</em> cell is the one which forms the body of an organism and contains all the genetic information.
  • A <em>gamete</em> is the one which is required for the purpose of fertilization. A gamete of male fuses with the gamete of female in a process called fertilization to form a zygote to give rise to a new individual.
  • A Sperm cell is basically a <em>male gamete.</em> It contains only half the amount of genetic information as the other half is contributed by the female gamete.
  • This difference in the amount of genetic information arises due to the type of cell division that occurs. The somatic cells undergo mitosis whereas a gamete requires meiosis to occur for its formation.
  • During mitosis there is a single round of cell division which divides the parent cell into two daughter cells each with the <em>complete genetic information</em>.
  • During meiosis the cell undergoes two rounds of cell division such that a total lf 4 cells are produced each <em>with half the amount of genetic material </em>as present in the parent cell.

Since, <em>sperm is a male gamete and is formed by meiosis it contains only half the genetic information as compared to the other cells.</em>

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3 years ago
What is it called when one hormone helps another have its full effect?
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it is called permissive interaction

Explanation:

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Which type of simple machine reduces the amount of input force needed? A.hockey stick
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The correct answer is D. RAMP because you use a ramp to reduce the amount of force needed to that work force. Hope This Helps!

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What are the four characteristics of water?
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1.It is a universal solvent.

2Pure water is transparent, colourless and odourless.

3.Pure water is a poor conductor of electricity.

4.Water in a pure form has a neutral ph i.e 7 which means it is neither acidic nor basic.

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What will happen if a bacterial cell is pretreated with a lysozyme solution, then placed in distilled water?
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The cell will undergo osmotic lysis. 3. The cell will plasmolyze.

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