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Ghella [55]
4 years ago
15

WHEN DARWIN FIRST PROPOSED HIS THEORY OF EVOLUTION BY NATURAL SELCETION THE FIELD OF GENETICS DID NOT EXSITS IN WHAT DOES GENETI

C SCIENCE NOW CONTRIBUTE TO THE STUDY OF EVOLUTION
Biology
1 answer:
DedPeter [7]4 years ago
5 0

Answer:

In 1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

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The surgical placement of an artificial joint is known as
Alekssandra [29.7K]

Answer:

Arthroplasty

Explanation:

The restoration of function of a joint is called Arthroplasty. The bone functions are restored by maintaining the  bones through resurfacing. Some times artificial joints are also used instead of resurfacing the existing bones.

Arthroplasty is a method to cure Osteoarthritis, or degenerative joint disease where joint cartilages reduces with age.

Also when medical treatments no longer make any impact on the joints of bone pain then Arthroplasty is done.

6 0
4 years ago
The most primitive true animal belongs to the phylum ____.
VMariaS [17]

Answer:

Porifera or Sponges

Explanation:

Porifera is the phylum of the simplest multicellular marine animals. Their body is composed of  two cell layers (something like tissues) and mesophyl between them. The body is in direct contact with surrounding water through the large number of pores and channels. What makes Sponges so simple is that their cells are unspecialized and that they  don't have nervous, digestive or circulatory systems.

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3 years ago
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Fynjy0 [20]

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A metabolically important difference between proteins and carbohydrates and fats is that:
Ann [662]
Th answer is D its the best answer that fits the question . 
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Popular culture may include changing trends in all of the following categories except
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