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3 years ago

Describe one way in which the quality of human life is based on the quality of a natural ecosystem.

Biology

1 answer:

Natali [406]3 years ago

4 0

Answer:

The quality of life is dependent on the quality of the environment in which the organism lives in. An ecosystem is made up of biotic and abiotic components which are interrelated.

For example, the quality of the water resources of an ecosystem would affect the quality of the humans that live in there. Although an ecosystem could have a lot of water, this does not mean that the water is usable as a source for hydration, which is needed by humans. If the quality of the water is bad, like it is polluted or contaminated, this would not make it a good source for drinking water, which affects the quality of life.

Another would be the availablity of clean and breathable air. Trees are our sources for oxygen and they filter out carbon dioxide in the air naturally as components of their own food making process. The decrease or lack of trees would mean that there would be less production of oxygen for humans to take in.

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If there are 8 chromosomes in the parent cell, after Mitosis, how many chromosomes will be in the 2 daughter cells created?

leonid [27]

Answer:

8 chromosomes in each daughter cell

Explanation:

Mitosis creates identical cells. If there are 8 chromosomes in the parent cell, there will be 8 chromosomes in each daughter cell. The way it works is that in late Interphase, the number of chromosomes and DNA double. In this case there would be 16 chromosomes. And when the cell splits into two during cytokinesis, each of the two would get half the chromosomes. Hence, there would be 8 chromosomes in each daughter cell.

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3 years ago

Which term describes the action of lions and hyenas fighting for the right to eat a dead gazelle?

MAVERICK [17]

<u>C. Interspecific competition</u> in ecology, is a form of competition in which individuals of different species compete for the same resources in an ecosystem (e.g. food or living space). This can be contrasted with interspecific cooperation, a type of symbiosis.

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3 years ago

Sea-floor spreading ovcurs at divergent boundaries which statement best identifies the geologic process taking place at the poin

stepan [7]

Sea-floor spreading ovcurs at divergent boundaries which statement best identifies the geologic process taking place at the point where sea floor spreading occurs

5 0

3 years ago

During respiration, members of the animal kingdom use ______ and then release ______ as a waste gas

raketka [301]

During respiration, members of the animal kingdom use oxygen and then release carbon dioxide as a waste gas.

Members of the animal kingdom have a respiratory system that is composed of muscles, and airways that functions together to transport air into lungs, and the oxygen is used by cells. Carbon dioxide is also transported away from the cells as a waste gas. Respiration relies on other systems, such as the circulatory system, to transport oxygen and carbon dioxide to and from cells.

8 0

3 years ago

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2. If 10% of the bases in a molecule of DNA are adenine, what is the ratio of adenine to guanine in the same

sertanlavr [38]

Answer: Option D) 1:4

Explanation:

Recall that the sum of all nitrogenous bases in the DNA nucleotide is equal to 100%. And specific base pairings of Adenine to Thymine (A=T), and Cytosine to Guanine (C=G) must be equal.

So, the percentage of Adenine equal thymine, and that of cytosine equals guanine.

Now, A + T + C + G = 100%

So, if adenine makes up 10% of the DNA nucleotides, then thymine is also 10%.

Then, 10% + 10% + C + G = 100%

20% + C + G = 100%

C + G = 100% - 20% = 80%

Thus, divide 80% by 2 to obtain the individual percentage of cytosine and guanine. Each will take 40%

Ratio Adenine to Guanine is 10% to 40%

or 1:4 in simplest form

7 0

3 years ago

Read 2 more answers