The process through which new species arise as a result of divergent natural selection between dissimilar ecological habitats is known as ecological speciation.
There are currently many instances of this technique. A type of speciation known as ecological speciation results from reproductive isolation when there is less or no gene flow between two populations of a species as a result of an ecological condition. Environmental changes that a species encounters, such as behavioural modifications in predation, predator avoidance, pollinator attraction, and feeding, as well as modifications in mate preference brought on by sexual selection or communication mechanisms, are examples of ecological factors.
New species are created as a result of ecologically motivated reproductive isolation under divergent natural selection. In the stickleback fish system they adapt instead of being blind therefore it is an example of ecological speciation.
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The toxin damages tissue in the area of infection. Most typically in the throat or nose. the infection produces a gray membrane which is made of dead cells and bacteria. This membrane is known to obstruct breathing.
B for the 1st one and C for the second one
I believe it would be D, since the animals that had more food, and a advantage, would produce and so on.
Answer:
THYROID GLAND
Explanation:
Thyroid gland functions in metabolisms by activities of thyroid cells.This cells withdraws Iodine from metabolites and combine it with amino acid tyrosine for productions of Thyroid hormones:
ThyroxineT3,(20%)
TriiodothyronineT4(80%). This production is under the influence of Thyroid stimulating hormones,regulated by the pituitary gland,
T3 and T4 increase calorinogenesis, (liberation of heat from digestion to supply energy,and oxygen consumption of the heart.)
Deficiency of thyroid hormones are goiters, hypothyroidism, and hyperthyroidism