The second option is the right one.
For DNA replication to occur, an existing double-stranded DNA (dsDNA) must be “unzipped” to form two strands of single-stranded DNA (ssDNA). The ssDNA then serves as the scaffold onto which a complementary strand of DNA is built by adding nucleotides one by one. At the end of this process, there are two identical strands of dsDNA, which then move into the daughter cells.
Answer:
DNA and the genetic code reflect the shared ancestry of life.
Explanation:
DNA comparison can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change.
Answer:
ans is 24
Explanation:
We know that,
Cube = 6 sides
Surface Area of a cube = 6s²
=> 6s²=6×2²
=6×4
=24
Answer:
B. a decrease in vegetation.
Explanation:
For exclusion:
Cannot increase the vegetation.
And increase the soil erosion.
And decrease the quality of air.
A claim is an unverified statement or theory which is made about something which may or may not be true.
<h3>Verification of a claim</h3>
For a claim to be validated, i.e, proven to be true (in science), then there needs to be tests and experiments which needs to be carried out to show that the claim is valid.
With this in mind, if for example if there's a claim that jewelweed helps to treat symptoms caused by poison ivy, then there needs to be a controlled experiment to see if this is true or not.
If after a series of experiments and it can be established without any iota of doubt, then the claim is valid and the scientific process will move to the next stage.
Please note that your question is incomplete so I gave you a general overview to give you a better understanding of the concept.
Read more about claim and evidence here:
brainly.com/question/10877313