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ss7ja [257]
2 years ago
7

During the carboniferous period, forests consisting mainly of __________ produced vast quantities of organic matter, which was b

uried and later became coal.
Biology
1 answer:
andre [41]2 years ago
6 0
Forests consisted mainly of ferns

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Unlike skeletal muscle action potentials, cardiac muscle action potentials __________.
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Which sequence would be possible for a rock going through the rock cycle?
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D. metamorphic -> melting -> igneous -> erosion

Explanation:

The sequence that would be the best possible for a rock going through the rock cycle is metamorphic rocks melting to produce igneous rocks that are eroded.

  • The rock cycle shows the pathway by which different rock types are formed.
  • The origin of the formation of rocks starts with the production of magma.
  • Igneous rocks are formed from cooling and solidification of molten magma.
  • Metamorphic rocks are formed from the subjection of igneous and sedimentary rocks to high temperature and pressure.
  • Sedimentary rocks are formed from weathering, erosion, transportation and deposition of rocks.
  • Option D shows a metamorphic rock melting to give igneous rocks and the igneous rock is eventually eroded to form sedimentary rocks.

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Sedimentary rocks brainly.com/question/2740663

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2 years ago
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Dr. stevens is examining the dna sequences of a group of mice. he notices that in one of the mice, one nucleotide pair is substi
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Out of the following given choices;

<span>A.      </span>The mouse has a completely different DNA sequence than the other mice.

<span>B.      </span> The substituted nucleotide has the same directions as the original nucleotide.

<span>C.      </span>Substitutions in the nucleotides of a mouse's DNA never affect their phenotypes.

<span>D.      </span>DNA sequences don't determine the color of a mouse's fur.

The answer is B. Most probably, the nucleotide substitution did not translate to a change in the amino acid sequence in the translated protein. As you may be aware, most amino acids are coded by more than one codon. For example, Leucine is coded for by CTT, CTC, CTA, CTG, TTA, TTG. Therefore, a substitution, that causes a change to either one of the sequences will not change the amino acid.






7 0
3 years ago
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