Help extra points rellay important​

Option A, Saliva

Explanation:

a.) Saliva = watery fluid, secreted into the mouth by the salivary glands, that functions in the tasting, chewing, and swallowing of food.

b.) Mucus = a thick liquid produced inside the nose and other parts of the body.

c.) The Tongue = the large, soft piece of flesh in the mouth that you can move, and is used for tasting, speaking.

d.) The Epiglottis =  a thin cartilaginous flap that covers the entrance to the larynx during swallowing, preventing food from entering the trachea.

Hope this helps!

A

Explanation: Have a great day!!

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.