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KatRina [158]
3 years ago
15

In natural selection, what is actually “selected?”

Biology
2 answers:
pochemuha3 years ago
6 0
B) Genotypes are directly selected
IceJOKER [234]3 years ago
4 0
The answer is Genotypes are directly selected.
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Which adaptive management stage helps us understand what objectives are actually met?
loris [4]

Answer:

C. implement

By implementing a design or objective, purpose and goal is met.

8 0
3 years ago
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>

3 0
3 years ago
Which statement best describes the amount of catalyst that remains at the end of a reaction? More catalyst is present at the end
shusha [124]

Answer:

The answer is the catalyst is consumed by the reaction, so none remains at the end of the reaction.

Explanation:

4 0
3 years ago
Read 2 more answers
Mendel had no understanding of dna as the genetic material, yet he was able to correctly predict how traits were passed between
andreev551 [17]
<span>Answer:
   Careful observation can lead to consolations even though the underlining reason or mechanism behind the phenomenon is unknown</span>
4 0
3 years ago
Observe the two plants. Which cellular change affected the structure of second plant?
OLEGan [10]

Answer:

The correct answer is option D which is release of water from the vacuoles.

Explanation:

The difference in second plant from the first one is rigidity. Second one is wilted and not rigid. This is due to the release of water from the vacuoles in the cell of plants.

Vacuoles are present in the center of plant cell. They are usually filled with water and provide structural support to the cell.

In the absence of water filled vacuoles, plants shoots are wilted as in case of second plant.

4 0
3 years ago
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