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Dimas [21]
3 years ago
5

3) Are greenhouse gases beneficial? Harmful? Explain your answer.

Biology
2 answers:
Anon25 [30]3 years ago
4 0

Answer: Green houses are harmful

they are one of the main cause of global warming.

ankoles [38]3 years ago
3 0

Answer:  Greenhouse gases are harmful to the environment.

Explanation:

greenhouse houses increases global warming and ozone depletion. methane, carbon dioxide, nitrous oxide and other harmful gases from the greenhouses. The combustion of fossil fuels and petroleum releases huge amount carbon dioxide in the environment. The gases trap heat in the atmosphere thus increasing the overall temperature of the earth- global warming. Global warming leads to a series of problems like climate change and ozone depletion.

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The direction of blood travel can be determined by:
Yuliya22 [10]
I think the answer is 04
7 0
3 years ago
Apple maggots are a type of fly native to North America. Prior to the introduction of the apple tree to North America, apple mag
scoundrel [369]

Answer:

B

Explanation:

B is the most likely consequence because of the following facts we are told:

  • After apple trees were introduced, some apple maggots began feeding from and laying their eggs on apple trees
  • Adult apple maggots will only mate on the type of tree on which they were born.

This provides a geographical isolation (because they are feeding and laying eggs on separate trees) and reproductive isolation (because they will only mate on the type of tree on which they are born).

These two factors increase the chances that apple maggots feeding on apple trees will only encounter those who have mated on the same tree, and continue to mate this way. Over time, the populations (i.e. apple tree vs hawthorn tree) will intermix less and less. This will mean the genetic pool will become distinct, and natural selection will be acting differently (different habitats and different genes), encouraging speciation.

7 0
3 years ago
Read 2 more answers
During transcription the DNA base sequence is transcribed into a complementary mRNA sequence. A codon table like the one shown b
xxMikexx [17]

Answer:

b. Even though the DNA sequence changed, the sequence still codes for the same amino acid, so no change in phenotype will occur.

Explanation:

There is redundancy in the genetic code. That means that different codons can code for the same amino acids, so some mutations do not change the amino acid sequence of the protein.

Here, the amino acid is unchanged with the mutation.

If the amino acid sequence of the protein is the same, then the protein is not changed, so there will be no change in the phenotype

5 0
3 years ago
5.You are doing an experiment involving the gain in mass of rats given different amounts of
dybincka [34]

Answer:

The independent variable are the vitamins .

The dependent variable are the rats.

Explanation:

The vitamins are the independent variable because they are are controllable. You can control how many vitamins the rats will be given.

8 0
3 years ago
What is the tissue glandulars function
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Answer:f

Explanation:f

4 0
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