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almond37 [142]
3 years ago
5

What would most likely result if humans stopped burning fossil fuels? Pls help! Taking quiz rn!

Biology
2 answers:
EleoNora [17]3 years ago
8 0

Answer:

The answer issssssss surely D

Arisa [49]3 years ago
7 0

Answer:

<h3>I think the (B) answer is right..</h3>

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How is it possible that over 20 million living organisms on the planet are made up of only 5 types of nucleotide based arranged
almond37 [142]

Answer/Explanation:

The DNA in all living organisms is made up of 4 bases, adenine, thymine, guanine, cytosine. The RNA replaces thymine with uracil, making 5 types of nucleotide. The number of nucleotide pairs in a genome can range from half a million up to 100,000 million - meaning there are an exponential number of combinations of these 4 bases.

Imagine an organism exists that has only 2 nucleotides (<u><em>this is over 200,000x smaller than even the smallest bacterial genome</em></u>). If we allow any nucleotide at each of the 2 positions, then we have 4x4 (4²) or 16 possible combinations of sequences. For a nucleotide length of 4, the total number of possible combinations are 4⁴ or 256.

Since we are dealing with many millions of nucleotides, there are essentially infinite combinations of nucleotides, giving rise to the variation that produces over 20 million organisms on the planet.

3 0
3 years ago
What are the energy conversions performed by the chloroplast and mitochondria​
azamat

Answer:

Photosynthesis and Oxidative Phosphorylation

Explanation:

The mitochondria uses oxygen within the cell to convert the chemical energy we get from the foods we eat, this makes energy in a usable form.

Chloroplasts help plant cells undergo the process of photosynthesis

4 0
3 years ago
During the investigation of a murder case, the police found a few bloodstains on the body of the victim, a few bloodstains on th
ValentinkaMS [17]

Answer:

C

Explanation:

5 0
3 years ago
4. What if the unthinkable happened at the hospital! A patient was given an I.V. bag with distilled water in it rather than sali
blagie [28]
A significant amount of cells would explode because of exocytosis osmosis.
8 0
3 years ago
Describe in detail light-dependent reaction as it relates photosystem (II)​
quester [9]

Answer:

The two photosystems absorb light energy through proteins containing pigments, such as chlorophyll. The light-dependent reactions begin in photosystem II. In PSII, energy from sunlight is used to split water, which releases two electrons, two hydrogen atoms, and one oxygen atom.

Explanation:

I hope that i answered

5 0
3 years ago
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