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3 years ago

which type of growth occurs when population growth slows or stops after a period of exponential growth

Biology

2 answers:

ValentinkaMS [17]3 years ago

7 0

Answer:

Logistic growth occurs when population growth slows or stops after a period of exponential growth. In logistic growth, sigmoid growth curve(S-shaped) is produced.

At this period, the net increases and a decrease in the number of individuals is zero because the population reached its carrying capacity, as a result, the growth becomes constant. Carrying capacity is the maximum number of individuals of a population an ecosystem can support.

As the population reaches its carrying capacity after exponential growth the growth curve becomes sigmoid which shows the environmental resistance is slowing down the growth rate.

Marrrta [24]3 years ago

3 0

Linear because if you were to chart or graph it, the line would remain constant.

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Answer:

The β-Turns in this sequence are two and include the Glycine (G), the two anterior amino acids, and the one posterior amino acid.

You will find the molecule image in the attached file.

Explanation:

β-Turns are structural elements that intervene in the orientation of the polypeptide backbone. These are short sequences of amino acids, with a characteristic conformation, that imposes a sharp 180º turn on the polypeptide chain. They are very abundant in globular proteins, such as Betanova, connecting the two adjacent antiparallel segments of the sheet.

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According to the given sequence of the protein, we can find two specific regions in the molecule that contains glycine (G). Proline is not present in Betanova. Following the theory, in most turns, Gly seems to be the third amino acid of the short sequence. So, we can assume that the first two amino acids that are located before the G and the amino acid located after the G, are the ones that compose the β-Turns.

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The first turn (QNGK) turns the direction of the polypeptide 180º, going forward to the opposite side.
The second turn (NNGK) turns again the direction of the polypeptide, driving the last strain to the other side.

In the attached image, you will find the structure of Betanova showing strands (black arrows) and turns (red arrows).

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Answer:

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