What type of glands are the gastric glands?

a. endocrine glands release contents into the bloodstream

b. exocrine glands release contents into the bloodstream

c. exocrine glands release contents into ducts

d. endocrine glands release contents into ducts

Question:

After going a long period of time without eating, the intestines release the hormone ghrelin into the bloodstream, which travels to the brain and signals hunger. After eating breakfast, hydrochloric acid and mucus travels through ducts to reach the stomach from the gastric glands and helps break the food down.

What type of glands are the gastric glands?

A. exocrine glands, because they release their contents into ducts

B. endocrine glands, because they release their contents into ducts

C. exocrine glands, because they release their contents into the bloodstream

D. endocrine glands, because they release their contents into the bloodstream

A. exocrine glands, because they release their contents into ducts

Explanation:

In photo below

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.