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3 years ago

What is the point when Earth is closest to the Sun called?

2 answers:

8 0

-- Perihelion . . . Point in Earth's orbit where we're closest to the sun.
   We get there sometime during the first few days of January.

-- Aphelion . . . Point in Earth's orbit where we're farthest from the sun.
   We get there sometime during the first few days of July.

-- Perigee . . . Point in the orbit of the Moon or any artificial satellite
      where it's closest to the Earth.

-- Apogee . . . Point in the orbit of the Moon or any artificial satellite
   where it's farthest from the Earth.

Elina [12.6K]3 years ago

5 0

-------------- Perihelion ----------------

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1. What are Chargaff's rules?

kotegsom [21]

1)Chargaff's rules state that DNA from any cell of any organisms should have a 1:1 ratio of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine. This pattern is found in both strands of the DNA.

2)DNA structure

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

3)A nucleotide consists of three things: A nitrogenous base, which can be either adenine, guanine, cytosine, or thymine (in the case of RNA, thymine is replaced by uracil). A five-carbon sugar, called deoxyribose because it is lacking an oxygen group on one of its carbons. One or more phosphate groups.

4)DNA replication is said to be semi-conservative because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand. ... Semiconservative replication would produce two copies that each contained one of the original strands and one new strand.

5)The diagram has show in above.

6)complementary base pairing is necessary because the double helix shape would not be the same if not. Doubles would only pair with doubles and the singles to singles.

HOPE THIS HELPS YOU.

7 0

3 years ago

The scientific theory of _________ states that populations change over time in response to changes in the environment.

ad-work [718]

Hello there ^ _ ^

I believe the answer is : A - Evolution

Good luck!

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3 years ago

Read 2 more answers

Botulism is caused by ingestion of a proteinaceous exotoxin; therefore, it can easily be prevented by

hammer [34]

Botulism can easily be prevented by boiling food prior to consumption.

<h3>What is Botulism?</h3>

Botulism may be defined as an imperative food poisoning that is provoked by botulinum toxin delivered in food by a bacterial species clostridium botulinum.

Clostridium botulinum inhibits the release of acetylcholine in the neuromuscular junction and causes defects in sensory perception through the central nervous system.

It can only be prevented by taking the proper boiled food prior to consumption.

The complete question is as follows:

boiling food prior to consumption.
administering antibiotics to patients.
not eating canned food.
filtering food.
preventing fecal contamination of food.

Therefore, the correct option for this question is A, i.e. boiling food prior to consumption.

To learn more about Food poisoning, refer to the link:

brainly.com/question/2192816

#SPJ1

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1 year ago

What might happen if you lose a lot of your platelets?

lianna [129]

Blood platelets... I think are red blood cells, I know we have red and white... hmmm... hope that helps

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3 years ago

Read 2 more answers

The surgical correction of a damaged middle ear is known as _____.

iragen [17]

The surgical correction of a damaged middle ear is known as tympanoplasty.

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3 years ago