Discuss the difficulties experienced in classifying extinct organisms.

What process allows for the development of haploid sex cells? mitosis meiosis fertilization pollination

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.

Aplant may open end close its stomata to prevent excess water loss and maintain