Answer:
The ephedra sinica plant comprises ephedrine alkaloids, which are used in the herbal supplements. The ephedra instigates the CNS, and exhibit adrenaline like effect on the body, it opens the blood vessels, excites the nervous system, and stimulates the heart.
However, FDA, that is, the Food and Drug Administration is against the consumption of the product due to its regular complaints in comparison to any other dietary supplements used in the market. It has been found that the consumption of ephedra based supplements has resulted in intracerebral hemorrhage, cardiac effects, mania, and even death.
Due to such issues, the FDA has issued an ultimate rule in 2004 by preventing the sale of the ephedra-containing supplements as the use of such supplements has resulted in an irrational threat of injury or illness.
Answer:c. Separated DNA is attached to the cell membrane before the cell divides.
Explanation:
The prokaryotes are single celled organisms. These are simple organisms which reproduce through asexual mode of reproduction that is cell division. They do not posses well define nucleus. Thus the genetic material remain in the cytoplasm of the cell. On cell division the genetic material (DNA) is distributed into halves for development of two daughter cells. Due to lack of nucleus and it's associated membrane the separated DNA get attach to the membrane before the cell actually divides.
Answer:
Bacterial cells are prokaryotic cells
Explanation:
B.) Adding a catalyst can increase the rate of reaction
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When an antigen invades a mammals body, specific immune cells engulf and ingest it. Some of the digested pieces are displayed on the cells bodies, the next step will be that B cells are activated and release antibodies. The correct answer is A.