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3 years ago

Rose quartz is pink and smoky quartz is gray. Which of the following statements is true?

Biology

1 answer:

katrin [286]3 years ago

3 0

Answer:

B. Color is the best way to identify a mineral.

Mineral can be defined as an inorganic substance obtained from the rocks or other geological deposits. A mineral can be differenciated from other minerals by examining the physical and chemical properties. Physical properties includes the color, luster, texture and other. Chemical properties includes the composition of the minerals.

Color is best way to identify a mineral in rose quartz and smoky quartz. The rose quart is pink in color whereas the smoky quartz is gray in color. The color should not only identified by examining the mineral superficially but the streaking of the mineral should be performed to determine the actual color from the sediment.

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In a strand of DNA, each single nucleotide represents a single letter of the DNA code. The following image represents a segment

OleMash [197]

The immense amount of information stored in DNA is coded with just four base nucleotides. These four nucleotides are paired by twos to form complementary DNA chains.

The makeup of DNA is limited to two pairs of nucleotides bases. One of these pairs is a pyrimidine base whilst the other forms a purine base. The four nucleotides that will make up the entire DNA code are:

Adenine (A)
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3 years ago

What is the fitness of an organism?

max2010maxim [7]

Answer:the fitness of an organism is the ability to survive and reproduce

Explanation:

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3 years ago

A study was conducted in a nursing home to examine the association of hand-washing and Gastroenteritis. Residents with the disea

cupoosta [38]

Answer:

The correct answer is case control study.

Explanation:

A study in which a comparison is made between the patients carrying the disease with the patients not carrying the disease is known as the case-control study. In the mentioned study, the one carrying the disease is termed as cases, and the one that does not possess the disease is termed as controls.

This form of study is generally done to predict the association between the disease and the risk factor. In case-control studies, only observation is done as no attempt is made to change the course of the condition. The prime objective of the study is to predict the exposure of the risk elements for the individuals present in two groups, that is, controls and cases. This form of study is also called case-referent studies or retrospective studies.

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4 years ago