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Kisachek [45]
4 years ago
11

_____ is an essential lung-coating substance that keeps air sacs from collapsing.

Biology
1 answer:
lakkis [162]4 years ago
7 0
The answer is surfactant
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Answer:

hope it helps

Explanation:

The green colour of the unripe fruit is due largely to the presence of chlorophylls, and the development of different colours during ripening is due to the disappearance of these pigments and the synthesis of carotenoids.

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Which of the following is not considered simple Mendelian genetics? A. recessive/dominant traits B. law of segregation C. polyge
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A student isolates, purifies, and combines in a test tube a variety of molecules needed for DNA replication. After adding some D
aivan3 [116]

Answer:

DNA ligase

Explanation:

DNA replication is an enzyme mediated, 3-step process during which the DNA molecule produces a copy of itself. The 3 steps involved are as follows;

  • initiation
  • elongation
  • termination

<em>Initiation </em>involves the unwinding of the double helix structure of the DNA using DNA helicase enzyme

<em>Elongation</em> involves binding of RNA primer to the DNA strands and addition of bases to the primer<em> </em>to elongate the new chains. Bases are added to the leading strand continuously while the lagging strand is replicated in short segments (okazaki segments).

<em>Termination</em> involves the unbinding of RNA primer and substitution of its bases by DNA bases. The Okazaki fragments are then joined together using the DNA ligase enzyme.

<em>The short, numerous segments of DNA observed in the mixture is the Okazaki fragments of the lagging strand. This is due to the absence of the enzyme involved in the joining of these fragments.</em>

Hence, the answer is DNA ligase.

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Which statement correctly describes the rock cycle?
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I’m pretty sure it’s D, the others don’t make sense??
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What happens to the sporangium when the water vesicle bursts?
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Are there options for your question?
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