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lord [1]
3 years ago
5

Which is an accurate description of what occurs when a log burns?

Biology
2 answers:
Nana76 [90]3 years ago
8 0
It's d
It can't be A because energy can't be created or destroyed.
It cant be C because energy doesn't take enough of a role in the light of the fire.
It can't be B because the compounds are not changing.
Alika [10]3 years ago
4 0

Answer:

d. The molecules present in the log are transformed into molecules that contain less energy than the original molecules. The energy difference is the heat of the fire

Explanation:

When a log of wood burns, Oxygen must be present because it is a combustion reaction. A log of wood is composed of organic materials and the main organic material present is Carbon.

Due to the fact that Oxygen is present, Carbon reacts with Oxygen to form Carbon dioxide which contains lesser energy than Carbon.

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Cold showers and physical exercise help the liver process alcohol more quickly. a. true b. false
Advocard [28]

Answer:

B False

Explanation:

Intoxication rate factors speed up or slow down alcohol as it gets into bloodstream can explain why some people seem to be affected more quickly by alcohol don't affect beer drinker measure the amount of alcohol in the bloodstream.

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There was two cocks and 3 cows and then two more cocks came? how many farm animals together?
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Some plants have stems called
inna [77]

Answer:

Runners

Explanation:

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3 years ago
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A standard PCR cycle includes three steps: denaturation (95°C), annealing (55°C), and elongation (65°C).
xz_007 [3.2K]

Answer:

Denaturation process: The DNA template  

Annealing process: Primers  

Elongation process: dNTPs and Taq polymerase

Explanation:

For the denaturing process, the only ingredient that is required is the DNA template that will be separated from a double helix (or double strand) into a single strand, by increasing the temperature to 95 C, (at this temperature the hydrogen bonds that keep together the double stranded break). After the double strand is denatured, the following process is annealing. For this, the required ingredient are the primers; these primers will hybridize or anneal according to the nucleotide complementarity to the single strand of the DNA. Finally, for the Elongation process, you will require the Taq polymerase and the dNTPs. The enzyme will synthesize or “generate” a new strand of DNA based on the DNA template, using the provided dNTPs in the direction 5’ to 3’.

I hope this clarify you inquiry.  

6 0
3 years ago
In his research on hunger and the brain, Dr. VanderZyl stimulates the lateral hypothalamus of his animal subjects. This stimulat
ki77a [65]

Answer:

The correct answer is - induces eating in animals, even if they are full.

Explanation:

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