Answer:
The correct answer is "crop rotation".
Explanation:
Crop rotation is the agricultural practice that consist of growing a series of different crops in sequenced seasons using the same soil. This practice helps to replace the lost soil nutrients by changing the soil nutrients consumption among the different crops. The benefits of crop rotation include reducing soil erosion and increasing soil fertility and crop yield.
Fungi during their life cycle have a haploid phase.
Also have a diploid phase.
Human somatic cells are diploid. (Blood, skin, Muscles, even zygote)
Human sex cells are haploid. (Eggs and sperms)
Hope this helps.
Answer:
<h2><u>
directional selection</u></h2>
Explanation:
This type of natural selection is referred to as . In this type of natural selection, either one phenotype is preferred or the other; therefore, there is no equilibrium between the populations of the phenotypes that are present.
Examples of organisms that have undergone directional selection are black bears during the ice ages, African chichlid and sockey salmon.
Variations in a genotype could be major or minor. It really depends on the degree of change. A genotype changes due to errors mutations. Some are endogenous, occuring with the organismm often during meiosis that causes changes in a genotype.
Learn more about here: https://www.quora.com/What-causes-variation-in-genotypes-How-does-this-occur
