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Dmitriy789 [7]
3 years ago
13

Scientists create models to help make sense of the natural world. Models are powerful tools that help scientists predict how

Biology
1 answer:
Elza [17]3 years ago
8 0

Answer:

I'm pretty sure its D

Explanation:

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Epigenetics refers to a special kind of hereditary mechanism. Epigenetic changes do not change the DNA nucleotide sequence, yet
OlgaM077 [116]

Answer:

Histone acetylation or DNA methylation.

Explanation:

The epigenetics may be defined as the genetic phenomena that might cause mutation in the organism's genome. The DNA sequence of the organisms do not get changed in epigenetics.

This phenomena is limited whether the gene is herited from the mother ot the father. The phenomena like acetylation of histones increase the gene expression. The DNA methylation and histone deacetylation at specific residues reduces the gene expression.

Thus, the answer is histone acetylation or DNA methylation.

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3 years ago
When we see a star in the night sky, we are actually seeing how it was sometime in the past. This is because light takes time to
irina1246 [14]
9.5 x 1015 = 9642.5
<span>6.08 × 1018 = 6189.44
  If you take these two problems, and then subtract, and find out the difference between the two distances, then you should be able to get your answer.

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3 0
3 years ago
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Why can dinoflagellate blooms be harmful to humans?
Cerrena [4.2K]

Dinoflagellate is a type of neurotoxin which is found in the red-tide algae.

The answer is:

d. people can get paralytic shellfish poisoning during dinoflagellate blooms

Dinoflagellate algal blooms, during red-tide, release strong neurotoxins that can be ingested by shellfish and passed on to humans who eat the infected shellfish. The most significant public health problem that has been known to  cause this harmful algae poisoning is: Amnesic Shellfish Poisoning (ASP).

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3 years ago
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Boilogy ;factors that affect enzymetic activites​
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Several factors affect the rate at which enzymatic concentration, substrate concentration, and the presence of any inhibitors or activators
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3 years ago
Which Chemicals are major contributors to the Ozone layer destruction? Select TWO answer choices.
Romashka [77]

Answer:

The damage to ozone layer is done by halogens such as Chlorine and Bromine.

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