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babunello [35]
3 years ago
10

The nucleic acid base found in RNA but not in DNA is ?

Biology
2 answers:
Feliz [49]3 years ago
6 0

Answer:

uracil

Explanation:

Yanka [14]3 years ago
5 0

Answer:

its the uracil

Explanation:

the four nitrogen bases in dna are adenine, guanine, thymine, and cystosine. In rna, thymine is imply replaced with uracil

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I need help on this question in biology and biology is hard and confusing
Yuliya22 [10]

Answer:

b. the new species must be unable to breed with the original species.

Explanation:

By definition, species are defined as groups of similar organisms that can live and breed freely. This means that individuals in that species can interbreed and produce viable, fertile offspring. However, two different species cannot interbreed to produce fertile offspring due to biological barriers known as mechanisms of reproduction isolation.

These barriers are broadly classified as pre and postzygotic. Prezygotic barriers include the following:

  1. Habitat isolation: Two species occupy entirely different and distant habitats.
  2. Temporal isolation: Two species  procreate at different times of the year.
  3. Behavioral isolation: Two species exhibit different mating behaviors.
  4. Gametic isolation: The gametes of the two species cannot fertilize.
  5. Mechanical isolation

Speciation, the production of an entirely new species, requires a maintenance of genetic diversity. Therefore, the new and original species cannot interbreed as this would limit the gene pool and decrease genetic variations.

4 0
3 years ago
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ivann1987 [24]
C doesn’t affect weather
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Korolek [52]

Answer:

A.Dissolving salt in water

Explanation:

Hope it helps

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How do plants use carbon dioxide
svetoff [14.1K]

Explanation:

Plants use photosynthesis to capture carbon dioxide and then release half of it into the atmosphere through respiration. Plants also release oxygen into the atmosphere through photosynthesis.

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A storm that always produces lightning is a _____.
-Dominant- [34]
<span>A storm that always produces lightning is a thunderstrom.

So, the asnwer is : B ) thunderstorm

-Hope this helps.</span>
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