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gayaneshka [121]
3 years ago
8

Which of the statements regarding the nitrogen cycle is true? a. Denitrification occurs when a nitrogen containing compound is p

roduced from nitrogen in the soil. b. Atmospheric nitrogen is absorbed through the leaves of plants. c. Nitrogen fixation is the process atmospheric nitrogen is converted into biologically usable forms. d. Animals obtain nitrogen through the process of cellular respiration
Biology
1 answer:
Fiesta28 [93]3 years ago
3 0

Answer: Option C

Explanation:

The nitrogen cycle can be defined as the process by which the nitrogen is being recycled. The nitrogen is transferred from the atmosphere to the plants and then from plants to animals, human beings.

Then from animals and human beings it is again transferred into the soil and then atmosphere.

The nitrogen that is found in the sol is not in the usable form by the plants, nitrogen fixing bacteria converts it into usable form.

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If the frequency of one allele in a population is 0. 7 in a population with two alleles at a particular locus, what is the frequ
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According to Hardy- Weinberg principle, if the frequency of one allele in a population with two alleles is 0.7 at a particular locus, then the frequency of alternate allele is 0.3.

<h3>What is Hardy- Weinberg equilibrium?</h3>
  • Hardy- Weinberg rule states that in the absence of disturbing factors, the genetic variability in a population remains constant in different generations.
  • It states that when mating is random both the genotypic and allelic frequencies remain constant as they are in equilibrium.
  • Hardy- Weinberg rule applies to a large population where mating is random and there is no migration.
  • It is given by p + q = 1, where p is the frequency of dominant allele in the population, q is the frequency of recessive allele in the population.
  • By squaring, p2+ 2pq+ q2= 1, where p2 is percentage of homozygous dominant individuals, q2 is percentage of homozygous recessive individuals. 2pq is percentage of heterozygous individuals.
  • Here given, p= 0.7, therefore q= 1- 0.7= 0.3

Learn more about Hardy- Weinberg equilibrium here:

brainly.com/question/3406634

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2 years ago
How are cells different in the beginning/end?
nikklg [1K]
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Cells can have two kinds of endoplasmic reticulum (ER): smooth ER, which has no ribosomes, and rough ER, which has ribosomes emb
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