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kodGreya [7K]
2 years ago
15

Which of the following galaxy types is usually made of mostly older stars

Biology
1 answer:
RUDIKE [14]2 years ago
3 0
Elliptical galaxies. I hope thats correct.
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Which of the following is an example of primary succession?
kiruha [24]

Answer:

B. the appearance of lichens and mosses in an area where a glacier has recently melted away

Explanation:

Ecological succession, which refers to the series of changes that occurs over time in an ecosystem, can be of two types namely: primary succession and secondary succession.

Primary succession is a succession that involves an area where no form of life has grown previously, hence, the area of land is barren e.g bare rock. Primary succession is first colonized by species called PIONEER SPECIES e.g. lichens, mosses etc.

According to this question, "the appearance of lichens and mosses (pioneer species) in an area where a glacier has recently melted away" is an example of PRIMARY SUCCESSION.

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After strenuous exercise sore muscles can occur because of?
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The correct answer is C. A buildup of lactic acid in the tissues.

Sore muscles after vigorous exercise are the result of lactic acid accumulation in the muscles.

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Muscle cells switch to another process called as lactic acid fermentation to produce energy. In this process, lactate dehydrogenase converts pyruvate into lactate and reduces NADH to NAD⁺.

This NAD⁺ enables the continuation of glycolysis which results in the production of net 2 ATP.

In addition, influx of materials such as nutrients, WBC, anti-inflammatory compounds etc into the muscle cell (for repair) causes swelling of the muscle fibers which is also the reason for the muscle soreness.

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A high fever causes an enzyme to lose its three dimensional structure and function. which bonds are broken when a protein denatu
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The difference between AB and O blood types has to do with the antigens you have or don’t have on your red blood cells.

AB blood has both A and B antigens on its red blood cells and

O blood has neither A nor B antigens on its red blood cells

Explanation:

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