The answer is “Variation that decrease reproductive success are more likely to be passed on.”
Cut flowers placed in sugar water stay fresh longer than flowers placed in regular water
Answer: location of the nares is an adaption to living in water
Explanation:
By having nostrils above water and in a small spot, all frogs need to keep above water are the nares - helps with camouflage.
T cell mediated autoimmune disease tend to be limited to a few organs and usually are not systemic because the autoimmune reactions are typically directed against cellular antigens with restricted tissue distributions. An example to T cell mediated hypersensitivity reaction against environmental antigen is contact sensitivity to chemicals.