The pyloric sphincter is compose of smooth muscle and is located between the pylorus in the stomach and duodenum of the small intestine. In digestion, it serves as a valve controlling the flow of food thus it prevents the contents of small intestine backing up into the stomach.
Answer:
Organs are structures made up of two or more tissues organized to carry out a particular function, and groups of organs with related functions make up the different organ systems.
Explanation:
hope it helps
Archea can live in extreme environments; Eubacteria cannot.
and
The gene sequences of their rRNA are very different.
Answer: biodiversity
Explanation: it makes sense as the best answer from all the choices, could be wrong tho lol
The most appropriate answer is D !
in respiration oxygen and glucose( food substance) combines to form energy and CO2 !
