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____ [38]
3 years ago
7

Помогите срочно!!! Умоляю

Biology
1 answer:
Alexxandr [17]3 years ago
6 0

огите срочно

Explanation:

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Which of the four factors that affect evolution apply to the finches that the Grants studied?Use evidence from your research to
BARSIC [14]
The four factors that affect evolution are mutations, natural selection, genetic drift and the gene flow, In the case, if the ground finches that Grants studied, we can observe the working of the natural selection. Due to change in the conditions in the environment, the large beak was an advantageous trait that was favored by the natural selection. The result of this process was an increase in numbers of large beaked finches and decrease in small-beaked finches compared to the initial numbers in the population.
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3 years ago
Are flowers counted as an asexual reproducer?
True [87]

Answer by YourHope:


Are flowers counted as an asexual reproducer?


It all depends on the flower. Flower plants are capable of sexual reproduction. However, they vary on whether they can reproduce both ways, or only sexually.


:)

6 0
3 years ago
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In an analysis of the nucleotide composition of DNA, which of the following proportions will be found?
katrin [286]

Answer:

With respect to the composition of DNA, in an analysis it can be found that the proportions of nucleotides are A + C = G + T (option a).

Explanation:

The proportion of nucleotides in a DNA molecule can be established according to the sequence of these nucleotides on both complementary strands, since the purinic bases of one strand are complemented by the pyrimidinic bases of another:

  • <em>Adenine is complemented with Thymine A=T</em>
  • <em>Guanine is complemented with Cytosine G=C</em>

From this we can deduce that in a DNA molecule with two chains there will be the same amount of adenine and thymine, as well as the same number of guanine with respect to cytosine, so:

<em>     A + C = G + T</em>

An example of this would be a known DNA molecule (hypothetical), with 5 molecules of Adenine and 7 molecules of Guanine. In this case there are 5 Thymines, complementary with Adenine, and 7 Cytosines like Guanine:

<em>     A + C = G + T</em>

<em>     5 + 7 = 7 + 5</em>

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2 years ago
What is the correct order of levels of organization, from smallest to largest?
love history [14]
Cell-tissue-organ-organ system-organism
3 0
2 years ago
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Draw a hypothetical metabolic pathway composed of five substrates, five enzymes, and a product called Biological Sciazine. Numbe
Maslowich

Answer:

a) The substrate 2 will be accumulated in the cells.

b) The enzyme E is mutated

Explanation:

a) The enzyme C has a mutation, the substrate 2 will not be turn into substrate 3 and this will cause to accumulation of 2.

b) when cells have 1,2,3 or 4 because of mutation of E non of these substrates cannot lead to 5. but ıf 5 gıven from the diet, the individuals can survive.

3 0
3 years ago
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