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zhuklara [117]
3 years ago
10

Which concept is not a part of the theory of evolution

Biology
1 answer:
garik1379 [7]3 years ago
6 0

Answer:

I believe the options are:

1) Present day species developed from earlier species .

2) Some species die out when environmental changes occur .

3) Complex organism develop from simple organisms over time .

4) Change occurs according to the needs of an individual.

The answer is 4) Change occurs according to the needs of an individual.

Explanation:

Theory of Evolution:

  • By definition, evolution is the process of change in an individual's/organism's characteristics over time. Evolution occurs through mutations in the genetic information or DNA of an individual.
  • The theory of evolution states that all organisms change over time and are descendants of a single common ancestor. Species adapt to the changing environment by introducing variations in their DNA over millions of years. Harsh environment conditions eliminate organisms that cannot adapt to the changing environment and only the fittest survive. This is called natural selection.
  • This process, occurring over millions of years, results in the formation of an entirely new species.
  • The theory of evolution is contrary to the concept of Lamarckism or inheritance of acquired characters which states that characters that an organism acquires during its lifetime can be passed on to its offspring.
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Explanation:

Hemophilia is a disease that is characterized by an abnormal blood clotting process. There are many different proteins that are involved in the clotting process and a single mutation or change in one of them could result in serious effects. Hemophilia is characterized by an abnormal version of one of the many proteins involved in the clotting process, the proteins that are commonly affected are the coagulation factor 8 or 9 (VIII or IX). These abnormal proteins are caused by a mutation in the gene (within the DNA) that codifies for the production of each protein. In other words, a mutation in the part of the DNA, (gene F8) will lead to a dysfunctional coagulation factor VIII and a mutation in the gene F9 will lead to a dysfunctional coagulation factor IX. Importantly, these mutations could be inherited and could cause hemophilia. Therefore, an error in the DNA and subsequently, an error in the protein will cause hemophilia. Finally, it is important to mention that there are other types of hemophilia that are not caused by the above-mentioned mutations, such as acquired hemophilia.

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2 years ago
Why is cellulose considered to be complex carbohydrates
Nata [24]

Answer:

Cellulose is considered as complex carbohydrates

Explanation:

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3 years ago
Which organisms are eukaryotes?<br> animals<br> plants<br> archaea<br> fungi
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<em>Answer:</em>

<em>B</em>

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5.What is the role of enzymes in the DNA replication process? A. Enzymes read the DNA code and build a new DNA molecule from scr
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3 years ago
Which causes the biodiversity of rainforests?
sashaice [31]

Answer:

B. Stable ecosystems

Explanation:

The main cause of the biodiversity experienced in rain forests is largely due to the stable ecosystems that they enjoy.

A stable ecosystem is a sustainable one that does not change too much over the course of time.

Most organisms and the diverse life forms are easily nourished by the provisions made available by nature in such regions.

  • Most rain forest receives a large amount of solar radiation and energy all year round as the sun is directly overhead here.
  • This suggests that the producers have enough energy to cater for their own need and that of the organisms there in.
  • The consumers and decomposers have sufficient food available all year round.
  • This coupled with other factors whereby organisms have specially adapted to environmental conditions makes a rain forest very biodiverse with life forms.
  • An unstable ecosystem cannot be biodiverse  
8 0
3 years ago
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