What theory suggests the origin of the organelles found in Eukaryotic cells? A)the endosymbiotic theory
B)the theory of evolution
C)the protocell theory
D)O the theory of relativity

A?

Explanation:

:)

A) The endosymbiotic theory.

Explanation:

This theory suggests  that eukaryotic cells were products of prokaryotic cells that engulfed each other reapeadtly over time, until the two cells combined and underwent evolution. Then they weren't recognized as prokaryotic anymore due to differing features and construction of the cells.

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies