The answer is : C.) Chinchillas are used as models for this research because their hearing ability is similar to that of a human. Hope I helped ;)
Answer:
1st factor is:Cornified layers:loss of water in the cell in the layer of dying cells
2nd factor is infusion of keratin its a dense protein that hardens the skin cell to aid in producing a barrier against the outside world
In the sentence "The F2 generation phenotypes resulting from the
monohybrid cross of purebreds display a ratio of _____" the word that
correctly completes the sentence is 3:1. In the monohybrid cross of
purebreds, F1 generation will consist of heterozygotes with dominant
phenotype. When F1 generation cross, the F2 generation phenotypes will
be as following: 3 dominant phenotypes (1 dominant homozygote and 2
heterozygotes) and 1 recessive phenotype (1 recessive homozygote).
We have seasons because the earth is tilted as it makes its way around the sun. So its always pointed in one way at the sun, causing different asmophere as we go around the sun.
