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erik [133]
3 years ago
9

What are the lines of evidence that Alfred Wegener used to support the idea of continental drift? Why did scientists of his day

doubt that continents drifted?
Biology
1 answer:
Zanzabum3 years ago
3 0

Answer:

Wegener presented a number of evidence to prove his plate tectonic theory, such as :

  • The matching of rocks on each side of the Atlantic Ocean like a puzzle.
  • His knowledge hat organisms such as freshwater reptiles were found in almost all continents
  • He also identified organisms that live in different continents, and could not possibly cross over to the other continents due to water bodies (oceans) separating the continents.

Wegener's plate tectonic theory caused doubts to other scientists, because of the way he presented his evidence. Other scientists considered his mechanisms unrealistic

Explanation:

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An egg developes to a new into a new animal after its fertilized by the male reproductive cell or sperm. No matter how an animal reproduces its eggs it must provide ways or nourishing and protecting the developing embryo. Have a great day hope this helps you :)

4 0
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12. Recent developments have resulted in the ability to clone cats. Many people argue that cloning offers pet owners comfort in
ipn [44]

Cloning is a process of producing genetically identical organisms through the techniques of biotechnology. Reproductive cloning of animals involves the somatic cell nuclear transfer in which the nucleus from an adult donor cell is transferred to an egg cell from which the nucleus has been removed. It is then incorporated into the uterus of a surrogate animal.

Pet cloning is not acceptable because of the following reasons-

(1) Its a very expensive procces with a high rate of failure.

(2) The clones produced tend to develop health problems. Large Offspring Syndrome (LOS) with very large organs is observed showing problems with blood flow and breathing with respect to heart and lungs, renal failure and other complicated issues.

(3) The clones are susceptible to skeletal abnormalities, higher rates of infection and tumour development. This results in a high mortality (death) rates.

(4) Since a surrogate mother is involved in the process of cloning, they experience a lot of health problems while carrying the embryos and sometimes it can be even killed.

Thus, cloning of pets is not acceptable as it affects both the cloned animal and the surrogate mother which is not preferred. Instead, adopting a homeless pet will provide shelter to another animal with a better nourishment.

7 0
3 years ago
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Which best describes Active Transport?
BaLLatris [955]

Answer:

The answer is A.

Hope this helps

6 0
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Taking a Kilodollar
Igoryamba

Answer:

Having a standard system of measurments.

Explanation:

If they have one set of measurements used around the world, it is easier to communicate and work together.

have a nice day! :)

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Why do many environmental agencies promote conservation of water even though a large portion of Earth's surface is covered with
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Because though there is a lot of available water, an ever shrinking 3% is freshwater, which comes from groundwater and streams. The ocean is salinated and in order for it to be fit to be used by humans for domestic needs or for drinking, it needs to undergo a huge desalination process which costs lots of money and time.
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