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leva [86]
3 years ago
8

Action potentials received directly from ________________ stimulate the papillary muscles to contract allowing for the proper __

_____________ of the AV valves.
Biology
1 answer:
BartSMP [9]3 years ago
7 0
Atrioventricular node; closing
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What amino acid is specified by the codon of GCG, and will there be a change if the codon is changed to GCC?
Black_prince [1.1K]
Hello there.

<span>What amino acid is specified by the codon of GCG, and will there be a change if the codon is changed to GCC? 

</span><span>A) The amino acid ala is not changed.</span>
8 0
3 years ago
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What could cause an igneous rock to become soil?
Troyanec [42]
The choices can be found elsewhere and as follows:

a. Increased temperature and pressure 
b. Melting and crystallization
<span>c. Exposure and weathering </span>
<span>d. All of the above
</span>
I believe the correct answer is option C. It would be Exposure and weathering that would cause an igneous rock to become soil. <span>Weathering breaks rock down into small particles which are carried away by erosion and deposited somewhere, sometimes creating very verdant soils. </span>
8 0
4 years ago
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Match each formatting of “white” to what it represents in genetics.
stiks02 [169]

Answer:

Protein  - WHITE

Gene - <em>white (italics)</em>

Phenotype - white

Explanation:

Usually, in genetics, to make it clearer whether the gene, protein, phenotype, mutation, etc. are being talked about, different styles are used. These actually differ between different organisms which makes it even more confusing!

Usually, the gene name is denoted in italics, and the protein is in capital letters. The phenotype is always written as normal.

3 0
4 years ago
The portion of the biosphere that consists of all earth's land is called the _____
Marizza181 [45]
Lithosphere is the correct answer
cause hydrosphere is water
and stratosphere and atmosphere are part of the air
8 0
3 years ago
‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎
KiRa [710]

Answer:

answer :

Explanation:

Explanation:

5 0
3 years ago
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