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2 years ago

How are metamorphic rocks classified? identify the characteristics of each of these classifications.

2 answers:

7 0

As with igneous and sedimentary rocks, metamorphic rocks are classified on the basis of texture (grain size, shape, orientation) and mineral composition. However, the classification of metamorphic rocks is more difficult to get into than with igneous and sedimentary rocks, for a couple of reasons.

Aneli [31]2 years ago

7 0

Metamorphic rocks are classified as either foliated or nonfoliated . Foilated rocks have layers of mineral grains. Nonfoliated rocks have little or no layering. ( just took the test)

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Brown mice disappear from the mouse population for two generations and then reappear in the third generation. Give two possible

gizmo_the_mogwai [7]

Answer:

The trait is inherited in the homozygous recessive pattern

Possible mating is between two heterozygous individuals

Explanation:

One possible explanation for this is that the trait for this brown mice has to inherited in the homozygous recessive condition. It is possible for this trait to skip two generations and then reappear if it has to be inherited in the homozygous recessive condition.

Another explanation to complement the first is that for this trait to reappear, there was mating between two heterozygous individuals (with one allele being domiant and the other being recessive). It is possible that all matings within the two skipped generations was between an heterozygous and a homozygous dominant or between two homozygous dominant individuals which will not produce the brown mice..

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3 years ago

Identify three sources that would provide a dna sample for analysis

iragen [17]

Blood, urine, tissue/skin, saliva, hairs, etc.

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3 years ago

Diagnose: Mrs. Harris is a 60 year old white woman. She has noticed in recent years that her height has slightly decreased. Rece

Brut [27]

Answer:

Q: Which skeletal system disorder might she be suffering from?

A: Osteoporosis

Q: What techniques could be used to diagnose her condition?

A: Bone mineral density (BMD) test or dual energy X-ray absorptiometry (DXA) scan

Q: What treatments are available?

A: Medication, healthy food.

Explanation:

The vertebral discs between vertebrae could shrink with age. Therefore, a height loss up to 1-inch is normal. However, if the height loss is more then it is possibly due to osteoporosis.

A bone mineral density test, also known as dual energy X-ray absorptiometry scan, is a well-adapted test to measure the amount of calcium and other minerals in the bones. It uses X-rays to measure the content of calcium and thus strength of bones.

A person who is already suffering from osteoporosis should be treated with medicine right away so that it stops further deterioration of the bones and avoid any future bone fractures. Further, it can be handled by eating a healthy diet and supplements such as vitamins D. In case some of the bones/vertebrae are already fractured, surgical approaches might be necessary.

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3 years ago

What can happen in the hydrologic cycle to move pollutants into the water?

Lilit [14]

Explanation:

this is mainly because when water evaporates, it leaves behind minerals, and even pollutants and goes up as clean water

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3 years ago

What type of soil is ideal for gardens and found in north-central Pennsylvania?

ladessa [460]

Answer:

Sandy loam

Explanation:

sandy loam is better than silt loam because sandy loam has smaller particles than silt loam for easy drainage.

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3 years ago