Answer:
The correct answer will be option A - A-band.
Explanation:
The sarcomere is the repeating unit of a myofibril which extends between two z-lines. Under a microscope, a sarcomere can be divided into A- band which is composed of thick myosin only and I-band which consists of thin filament that is actin only.
When a muscle contract then actin and myosin comes in overlapping position due to which I-band shortens and between two z-lines and overlapped structure of thin actin filaments over thick myosin filaments (A-band) is seen.
Therefore, only A-band is seen between two z-lines in a contracted muscle thus, option A is the correct answer.
Answer:
1. Integrity
2. Health Care
3. Code of Ethics
Explanation:
I calculated it logically
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<h2><u><em>AIDS epidemic Russia</em></u></h2>
The number of people living with HIV in Russia now exceeds 1 million, according to official statistics. Most experts say the true figure is likely to be at least 1.5 million — around 1 percent of the total population of 146 million — because many people are unaware of their HIV-positive status.