13. A change in pH is able to cause protein denaturation because

Biology

1 answer:

Triss [41]3 years ago

8 0

Answer:

The correct answer is Option a. The amino group is sensitive to OH-.

Explanation:

Protein denaturation means change in the structure of the amino acid. Amino acid is sensitive to various environmental factors such as pH. If the pH of the medium increases or decreases from optimum level, denaturation of protein occurs. Hydrogen bond is present in between amino acid molecules. When pH changes, hydrogen bond is disturbed and structure of protein changes.

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Is the temperature profile in the thermosphere more like that of the troposphere or the stratosphere?

podryga [215]

The correct answer is: stratosphere.

This is because their temperatures are rising instead of decreasing.

There are 4 primary layers of the atmosphere on Earth:

Troposphere (6-20km), the layer that we live in, where the weather occurs. Only nitrogen and oxygen present.

Stratosphere (20-50 km), where the airplanes fly, contains the ozone layer, which absorbs harmful radiation from the sun.

Mesosphere (50-85 km), the coldest region of Earth’s atmosphere (-100 C), protective layer

Thermosphere (80-690), the hottest (1500 C) and the thickest layer which consists of the ionosphere and the exosphere.

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3 years ago

While distinctly Anthropoids, some Platyrrhines maintain a few of traits that are typically represented only in Prosimians. For

crimeas [40]

Convergent evolution is the concept of two or more species evolving similar traits despite being completely unrelated to one another, including the absence of a common ancestor.

The Platyrrhines, more commonly known as "New World Monkeys", share many characteristics with the Prosimians. Some of these include:

Teeth layout
Diet
Eyesight
Sleeping habits

and more.

The Platyrrhines and the Prosimians are both nocturnal animals. Despite all other members of their family being active during the day, the Playrrhines have evolved nocturnal habits similar to that of the Prosimians. Aside from that, they feed on insects more so than fruit, which is reflected by the layout of their teeth, and have eyesight well adapted to dark conditions. All of these are traits they share with the Prosimians.

Despite being in different ecosystems and regions, and sharing no recent common ancestors, both of these species have evolved strikingly similar traits. This can be used to corroborate the theory of convergent evolution, which explains how two species can evolve very similar traits despite being unrelated.

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