The answer is organ
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Answer:
(B) semiconservative.
Explanation:
According to the model proposed by Watson and Crick, the DNA molecule consists of two polynucleotide chains arranged on a helix around an imaginary axis, rotating to the right (a double helix). That is, the DNA molecule is in the shape of a spiral staircase, in which the "steps" are made up of nucleotide nitrogen bases and the "handrails" are covalently linked phosphate and sugar - so it is said that DNA is shaped like a helical ribbon. Also according to Watson and Crick DNA replication is semi-conservative, because each strand of DNA will give rise to another strand that will be complementary to its nucleotides.
Answer:
The bacteria might have gotten immune to the hand sanitizer.
Explanation:
While the hand sanitizer kills the bacteria, the bacteria starts to learn how it works and how to react when it needs to go up against it. Think of it this way, the hand sanitizer goes to the bacteria and starts to slap it to kill it, but while it is doing that, the bacteria starts to learn how it works and all of its moves. It then uses it moves against it and becomes a SUPER BACTERIA!!!
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Answer:
A new rock is produced that is different from the original rock.
Explanation:
During chemical weathering, a new rock is produced that is different from the original rock.
- Chemical weathering is the chemical decomposition of rocks to form sediments and soils.
- A large chunk of rock combines with water, air and other chemical materials.
- This cause chemical action and a new substance is produced.
- This process is known as chemical weathering.
Physical weathering is the breaking down of rocks into smaller fragments.
