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PtichkaEL [24]
3 years ago
13

Rocks are made of collections of mineral grains that are held together in a firm, solid mass. Rocks are identified primarily by

the minerals they contain, their color, and their texture.
Based on this passage, you can infer...

A. Rocks are classified into three major groups
B. Rocks form from the cooling and hardening of molten rock
C. A rock's origin is the way it was formed
D. Each type of rock has a distinctive set of minerals

OMG PLSSS HELP ME PLS PLS PLS!!!!!!!
Biology
1 answer:
salantis [7]3 years ago
6 0

Answer:

Explanation: it’s a

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76. What is a restriction enzyme?
vlabodo [156]

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an enzyme produced chiefly by certain bacteria, having the property of cleaving DNA molecules at or near a specific sequence of bases.

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An atom has an atomic number 17 and atomic mass number 35. How many neutrons are present in its nucleus?
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3 years ago
The false spider mite, Brevipalpus phoenicis, has only two chromosomes. Which of the following pieces of evidence would allow yo
Reptile [31]

Answer:

The correct answer is - a. If these two mite chromosomes have different genes at different loci.

Explanation:

If it is 2n= 2, it means that it is diploid and has two sets of chromosomes in which one set comes from mother and the other from father which means parent's genes contribute to diploid equally. Both sets of chromosomes form homologous chromosome pair. Each homolog of the pair has the same gene at the same loci in diploid and if it has not the same homologous gene at the same loci these are haploid.

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3 years ago
Which statement best describes the role of phosphorus in the body?
Inessa [10]

Answer:

B

Explanation:

It plays an important role in how the body uses carbohydrates and fats. It is also needed for the body to make protein for the growth, maintenance, and repair of cells and tissues. Phosphorus also helps the body make ATP, a molecule the body uses to store energy. Phosphorus works with the B vitamins.

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