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r-ruslan [8.4K]
3 years ago
9

A major problem with depending on fossil fuels as primary energy sources is that they are

Biology
2 answers:
cluponka [151]3 years ago
8 0
Fossil fuels can't be reused. Fossil fuels can run out at any time and fossil fuels pollutes the air we breathe and the water we drink.
Mumz [18]3 years ago
5 0
<span>nonrenewable I know that is the answer</span>
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In a hypothetical population of plants, flower color is determined by a single gene with two alleles. In a population of 500 pla
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Answer:

In the F1 generation

RR = 0%

Rr = 50% (or 0.5)

rr = 50% (or 0.5)

Explanation:

A pink flowering plant has the genotype Rr. It is heterozygous for the allele. The alleles for this gene appears to show incomplete dominance, as the heterozygous phenotype is a blend of the two homozygous genotypes.

A white flowering plant has the genotype rr. It is homozyogous for the white allele

A punnet square of the cross is shown.

The resulting punnet square shows that only Rr and rr genotypes are possible, at a ratio of 50:50 (or 1:1). Therefore, the genotype frequency of Rr is 50%, and rr is 50% in the F1 generation. This can also be written as 0.5. It is not possible to get a red plant, as the genotype RR can not come from this cross

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3 years ago
How do the atmospheric conditions near the beginning of Precambrian time contrast with the atmospheeic conditions that are prese
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Early pre-cambrian period the atmosphere consisted only of nitrogen and carbon dioxide without oxygen.

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3 years ago
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What happens to the position of the stars from evening to the next morning?
gulaghasi [49]

Answer: They move during that time because of the fact that the earth move around one its axis around the sun.

Explanation:

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2 years ago
Which of the following occurs after a condon and anticondon form hydrogen bonds<br><br>​
xxTIMURxx [149]

Answer:

Anticodon. The anticodon region of a transfer RNA is a sequence of three bases that are complementary to a codon in the messenger RNA. During translation , the bases of the anticodon form complementary base pairs witht the bases of the codon by forming the appropriate hydrogen bonds.

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3 years ago
Which organisms break down decaying organisms and produce an inorganic nutrient pool in ecosystems?
allochka39001 [22]

Answer:

Decomposers

Explanation:

Decomposers eat decaying or dead organisms to produce the nutrients.

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2 years ago
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