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neonofarm [45]
2 years ago
15

2

Biology
1 answer:
worty [1.4K]2 years ago
3 0

Answer:

A) Fossil discoveries, mostly of animals who couldn't swim, helped prove continental drift

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Who discovered that dna was the genetic material or transforming factor that could convert nonvirulent r-type streptococcus pneu
KatRina [158]
Discovery
               In 1928 it was discovered by Frederick Griffith in an experiment generally known as transformation.

Experiment
                 
 In his experiment he considered two strains of <em>streptococus pneumonia,</em> one was R-type which was non-virulent and cause no disease in mice, other was virulent and S-type which cause disease and at last death of mice.
This experiment was comprised of four steps which are as follow:

 Step 1:
           First he injected living strain of S into mice, after sometime mouce died.

Step 2:
          He injected living strain of R into mice, the mice alive as he did not got any disease.

Step 3:
         He injected heat killed strain of S into mice and mice remain alive.

Step 4:
           He mixed living R strain with heat killed S strain and then inject into mice. As a result the mice died.

Conclusion:
                  It was found that genetic material from heat killed S stain were transferred to living R (non-virulent) strain, as a result R become virulent and cause the death of mice.

7 0
3 years ago
What determines the volume of a gas?
lidiya [134]

Answer:

The volume of container determines the volume of a gas.

How?

As the gas takes the shape of container .

hope it helped you:)

3 0
3 years ago
Read 2 more answers
Need help with all the questions in the picture<br> (7th grade science)
Naya [18.7K]
Well the picture could help :)
5 0
3 years ago
Transcribe the following strand of DNA:
STALIN [3.7K]

Adenine will always trancribe to Uracil

Thymine will always transcribe to Adenine

Cytosine will always transcribe to Guanine

Guanine will always trancribe to Cytosine

Answer is CUCAAUGAU

4 0
3 years ago
Which is true of both photosynthesis and aerobic respiration?
galben [10]

Answer:

The answer is C

Explanation:

For answer A, only aerobic respiration can form sugar, photosynthesis forms ATP. Answer B, only photosynthesis takes up carbon dioxide, aerobic respiration takes up oxygen. Answer D, oxygen is a reactant only during aerobic respiration. Answer E, oxygen is only one of the product of photosynthesis, not aerobic respiration❤️

Hope this will help~Have a good day

3 0
2 years ago
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