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Charra [1.4K]
3 years ago
6

An example of an indicator species is the sea otter. Without sea otters, sea urchins would overgraze on kelp beds, dramatically

changing the marine community.
True
False
Biology
1 answer:
Bezzdna [24]3 years ago
6 0
False. sea otters dont really eat <span>sea urchins and not much would chang</span>
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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
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<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
____ is a substance released by the pituitary gland late in pregnancy and causes the uterine contractions late in the birth proc
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It is called oxytocin-hope this helps.
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Explanation:

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