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AlexFokin [52]
3 years ago
7

What is the name for nonmetallic minerals that are valued for their beauty and rarity rather than their usefulness?

Biology
1 answer:
Vedmedyk [2.9K]3 years ago
7 0

Answer;

-Gemstones

Gemstones are nonmetallic minerals that are valued for their beauty and rarity rather than their usefulness.

Explanation;

-Most gemstones form in the Earth's crust; the top layer of the Earth, with a depth of 3 to 25 miles. Only two gemstone varieties, diamond and peridot, form in the Earth's mantle, which represents 80% of the Earth's volume.

-A few gemstones form in the mantle, but all gems are mined in the crust. A precious gemstone has beauty, durability, and rarity, whereas a semiprecious gemstone has only one or two of these qualities.

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A single gene mutation in cats can result in curly ears (see image). The cats are healthy and normal beyond the ear structure, w
kicyunya [14]

The following responses are true;

a. A cross between this cat and another curly ear cat will result in 100% curly ears

c. The genotype of the cat in the picture is $$

g. The genotype of the cat in the picture is S$

h. A cross between this cat and a homozygous normal ear cat will result in 100% normal ears

Explanation:

Because the allele for curly ears is recessive, then all the cats with curly ears have a homozygous recessive genotype ($$) because the don't have a domiant allele (S) to mask the effect of the recessive allele.

A cross between two curly-eared cats (which means they both are homozygous recessive individuals) will result in 100% curly-eared offspring with homozygous recessive genotypes.

A cross with homozygous dominant individual will result in all offspring being straight-eared but with heterozygous genotypes.

7 0
3 years ago
Phase 1: Measuring diameter of a circle
kupik [55]

Measuring the diameter of a circle using a ruler requires the knowledge of what the diameter of a circle is.

The diameter of a circle is simply the radius of the circle multiplied by 2. In other words, one can simply measure the radius of a circle and multiply it by 2 in order to get the diameter of the circle.

The radius of a circle in itself is the distance between the center of the circle and to any endpoint of the circle.

Hence, in order to measure the diameter of the circles in question, just measure the radius of each circle using a ruler, multiply it by 2 and record your measurements.

If you had used the cm reading on the ruler to record your measurements, each diameter in cm can be converted to mm as follows:

1 cm = 10 mm

Assuming that a particular diameter reads 10 cm:

10 cm = 10 x 10 mm

                = 100 mm.

In other words, just multiply your measurement by 10 in order to convert them to mm.

More on measurement and conversion can be found here: brainly.com/question/13710038

6 0
3 years ago
Which of the following is a way that lakes differ from ponds?
otez555 [7]
The lakes are different than ponds because it effects on weather conditions. pretty sure. i learned this in middle school and it popped into my head that it’s due from weather conditions
3 0
3 years ago
Beth carries the recessive gene of red hair. Her husband does not, which punnet square correctly represents the possibility that
Yuliya22 [10]

Answer:

their is a 50 prencen chance the kid will have red hair

Explanation:

3 0
3 years ago
What is feedback in a system?
ycow [4]
Regulation of a system by the output.
4 0
3 years ago
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