Nervous control of gastric secretion is provided by .

Options for the question have not been provided. They are as follows:

A) somatic neurons in the spinal cord

B) the reticulospinal and vestibulospinal tracts

C) the vagus nerve and enteric plexus

D) the rubrospinal tracts

C) the vagus nerve and enteric plexus

Explanation:

Enteric plexus or enteric nervous system is a part of autonomic nervous system and controls the gastrointenstinal (GI) tract. Vagus nerve is tenth cranial nerve and it innervates the enteric plexus. Both work together to control various functions of GI tract like peristalsis and gastric secretion. They release Gastrin-releasing peptide due to which the G cells of stomach are stimulated secrete gastrin. Gastrin in turn stimulates parietal cells of stomach to secrete gastric juice.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

what is shown in the image?

eukaryote

chloroplast

mitochondrion

submitted