well usually cell wall helps to maintain the shape of the plant cell which plasma can't do.
both of them controls movement of substances into in and out of the cell.
<h3>sturuture:</h3>
plasma membrane contain outer membrane that surrounds the entire contents of cell and made of protein and phospholids.
cell wall are strong n rigid, made from celllouse fibre and fully permeable
The answer is; B
Sulfate is polyatomic and is given the empirical formula (S04 )2-. Sulfates are salts of sulfuric acid. Sulfides, on the other hand, given the empirical formulae (S)2- , is an inorganic anion that is as a result of chemical reaction with metals.
Answer:
B. Stroke
Explanation:
Atherosclerosis refers to the formation of cholesterol-rich plaques in the inner lining of arteries. Atherosclerosis in cerebral arteries which function to provide oxygenated blood to brain cells leads to abrupt destruction of brain cells. Death of brain cells occurs due to oxygen deprivation. It is called a stroke or brain attack or cerebrovascular attack. Stroke poses a risk of developing higher blood pressure.
Answer:
A
Explanation:
510K approval is required to demonstrate that device to be marketed is substanitally similar to an already legally approved and marketed device and therefore safe to use
PMA approval is required to approve Class III type medical devices that are new and have not been marketed. They involve human participants.
Clinical trials involve volunteers and is carried out when a drug or device has been tested in laboratory
Exempt status is given to class I devices and not to class III devices.
