Answer:
Biogeographic isolation is the separation of organisms of a species through geographical or biological forces.
Explanation:
The structure that serves as the cell's boundaries from its environment is known as the CELL MEMBRANE. It keeps the bad things from coming in, and releases waste out into the environment.
<span>Answer: cell membrane</span>
Answer:
D. Cell wall
Explanation:
Cell wall is also present in prokaryotes it is made of peptidoglycan layer.
Answer:Radioisotope Liver Scanner.
Explanation:
Radioisotope liver scan is a type of nuclear medication in which the radioactive tracer is formed by adding radioactive atoms to the molecules absorbed by the normal liver tissues.
It is used in diagnosing liver diseases.
Answer:
The statement is false.
Explanation:
At the base of the oxyntic gland, in addition to the parietal cells, the chief cells (peptic cells) are located, mainly in the lower half of the gastric glands, these cells have large basophilic zymogen granules, more prominent in the apical region and responsible of the secretion of pepsinogen proteolytic enzymes, a relatively constant fraction of pepsinogen I released by the chief cells is absorbed by the blood instead of passing into the gastric lumen. The stomach acid transforms pepsinogen into pepsin, which breaks down proteins in food during digestion.
