Answer:
They tunnel through the soil, which allows air to enter.
Explanation:
Earthworms are considered to be agriculturally friendly living organisms that hold immense importance in improving the growth and productivity of plants.
They live in the soil and feed on the debris of plants such as manure, grasses, roots and dead leaves. They extensively channel and tunnel through soils while moving that causes loosening of the soil resulting in more aeration of the soil. The more the soil aeration is, the better soil drainage is.
Studies have shown that soil containing earthworms have ten times better drainage than soils that donot have earthworms. Therefore, C is the best option.
Hope it help!
<u>Cross the </u><u>green-pod plant</u><u> with a yellow-pod plant. </u>Because the homozygous recessive plant tests for the presence of any recessive alleles in the unknown genotype.
The cross between an unknown genotype plant and a known homozygous recessive plant is referred to as a test cross. Because each offspring of a recessive homozygote will inherit one allele for the recessive trait, the phenotype of the offspring will depend on the second allele.
The genotypes, allele combinations, and observable qualities of children from genetic crosses may be predicted using a Punnett square. Mendel examined the genetics of pea plants and determined how traits like flower color, blossom position, seed color, and seed shape are passed down through the generations.
According to Mendel's theory, parents impart "heritable factors"—what we now refer to as genes to their children, which in turn determines their qualities. A particular gene, such as the Y gene below, which determines seed color, has two copies in every individual. If these copies correspond to various alleles, or versions, of the gene, the dominant allele may conceal the recessive allele. The dominant yellow allele Y conceals the recessive green allele Y in seeds.
Learn more about genotype
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Explanation:
Psi packaging Element is a cis-acting RNA element identified in the genomes of the retroviruses Human immunodeficiency virus (HIV) and Simian immunodeficiency virus (SIV) It is involved in regulating encapsidation of the retroviral RNA, an essential step in replication.
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Hello!
The body of a sponge is not very complex, mainly because it has no cells. It has 2 outer layers and supportive needles, but no cells!
Enjoy.
~Isabella