The observations charles darwin made during his time aboard the h. m.s. beagle prompted him to ask which question?

To know the answer of the question that if living things change or evolve over the time. To check if selective breeding occurs in nature.

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.

4, two dominant and two recessive