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Lilit [14]
3 years ago
12

Can you guys answer these 3 questions please? Or at lease one person for each question please!

Biology
1 answer:
rewona [7]3 years ago
6 0

Answer:

Answer for third question.

Explanation:

The permanent destruction of forests to use the land or trees is known as deforestation. Deforestation takes place due to a number of reasons like natural causes and human activities. The main cause for deforestation is  overpopulation. Overpopulation results in an increase in global needs which leads to expansion of infrastructures, industries, agricultural needs and thus deforestation. Other reasons for deforestation are infrastructure expansion , logging for wood based industries, farming, mining etc. Deforestation causes drastic changes in the environment. The environmental problems which results from widespread deforestation include climatic changes, loss of biodiversity, flooding, increase in greenhouse gas emission, acidic oceans, air and water pollution etc.  Deforestation results in global warming.  Planting trees reduce the effects of deforestation by preventing soil erosion and pollution. The other ways to lessen the effects of deforestation includes recycling and using of recycled products. Reduce the usage of paper and use wood alternatives like hemp, bamboo, wood composites etc for construction and remodeling products. Also we can raise awareness in the community against deforestation through campaigns

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8 0
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16. Why should the recessive phenotype be used first to determine the q squared value instead of the dominant phenotype to deter
podryga [215]

The recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.

<h3>What is a recessive phenotype?</h3>

A recessive phenotype is a phenotype which expresses the recessive trait of a gene.

The recessive phenotype is always h0m0zygous for that triat to be expressed.

In the Hardy-Weinberg equilibrium equation, the allele and phenotype frequencies are given as follows:

  • p^2 + 2pq + q^2 = 1

where;

  • p^2 is the h0m0zygous dominant phenotype frequency
  • 2pq is the heterozygous phenotype frequency
  • q^2 is the h0m0zygous recessive phenotype frequency

Therefore, the recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.

Learn more about recessive phenotype at: brainly.com/question/22117

8 0
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