Artificial Selection is a form of selection in which humans actively choose which traits should be passed onto offspring. Humans have used selective breeding long before Darwin's Postulates and the discovery of genetics. Farmers chose cattle with beneficial traits such as larger size or producing more milk, and made them breed; and although they may have known nothing about genes, they knew that the beneficial traits could be heritable. The farmers selected for certain traits in their cattle and probably noticed that the offspring were becoming more and more productive with each generation. Scientists study these traits and spend a lot of time calculating how heritable these traits can be. The more these traits are expressed in the offspring (i.e. size, milk production, etc), the more heritable these traits are said to be. Hunting is also a form of artificial selection, with the genes that humans "want" (i.e. - the biggest buck with the most points, the largest fish, etc.) being removed from the gene pool, allowing the less "wanted" genes to pass on to the next generation by increasing their odds of mating when compared to the hunted specimens.
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Answer:
C, 10%
Explanation:
For the year of 2010, it's definitely 10%
Sympathetic-adreno-medullar (SAM) axis, secretes noradrenaline and norepinephrine and the hypothalamus-pituitary-adrenal (HPA) axis, secretes glucocorticoids during stress.
SAM (Sympathetic-adreno-medullar) axis activation occurs in just a seconds as a result of a stressor and generate a adaptive respond towards stressor. The HPA axis is a slower response system involving release of corticosteroids .
Corticosteroids are corticotropin releasing hormone, adrenocorticotropic hormone, and cortisol, Which suppress the immune system . Corticotropin-releasing factor (CRF) plays a major role in the stress response by regulating the hypothalamic-pituitary-adrenal (HPA) axis.
To learn more about Corticosteroids , here
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The answer is C. It states that energy can only be moved from object to object.
Answer:
It can go two ways :
1-Evolution could help us grow immunity to the coronavirus
2-It could cause deadly outcomes and change things.
Explanation:
