In a population of plants with a diploid number of 12, a new individual appeared with a chromosome number of 24. if this organism could self-fertilize, forming offspring with the same number of chromosomes (24), scientists would consider this an example ) sympatric speciation.
b) behavioral isolation.
c) formation of a hybrid zone.
d) reduced hybrid fertility.

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.