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dimaraw [331]
3 years ago
12

1Q A naturally occurring substancethat has a definite chemicalcomposition is called *​

Biology
1 answer:
Tema [17]3 years ago
4 0

Answer:

"A mineral is a homogeneous (which means composed of parts or elements that are all of the same kind) naturally occurring substance with a definite but not necessarily fixed chemical composition. Most minerals are solids with an ordered atomic arrangement, and most are inorganic in the chemical sense of that word".

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Suppose you try to heat your house using a fireplace in one of the rooms. Would a fan be helpful?
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Yes it would blow heat around the house ....................
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Describe the differences between the forces of magnetism and gravity.
lord [1]

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Gravity is not the same thing as magnetism. They are in fact entirely distinct forces. Gravity is a force that works with weight between two objects. Magnetism can pull or separate the two objects, depending on how the magnets point.

Explanation:

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18. Decreasing the concentration of CO2 will have what effect on the rate
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Explanation:

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Which situation results from increased biodiversity in an ecosystem
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3 years ago
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In humans, a type of blindness is due to a dominant allele; normal vision is the result of a recessive allele. Migraine headache
yan [13]

Answer:

Yes.

Probability of such child = 1/2 or 50%

Explanation:

According to the question, below are the genotypes and phenotypes possibilities:

aa = normal vision & no headache

Aa = normal vision & no headache

AA = blindness & headache

                                                                      Male                       Female

                                                                        Aa                            aa

Possible genotypes of progeny:            Aa        Aa           aa         aa

So it is clear that out of the 4 probable children, 2 with 'genotype aa' will have normal vision & no headache.

Mathematical expression is as under:

2/4 = 1/2 that means 50% progeny.

5 0
3 years ago
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