Which of the following phenomena usually only has an effect on very small populations?
A Gene flow
B Genetic drift
C Recombination
D Mutations

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

Draw the structure of dna nucleotide with adenine as nitrogenous base

Which nucleotide component contains nitrogen