Answer:
b. The knife pierced the pectoralis minor muscle to reach the cords of the brachial plexus
Explanation:
According to the question, the knife penetrated the anterior wall of the right axilla and reached to the centre of the axillary space. The pectoralis minor muscles are located at this place. Pectoralis minor muscles are small muscles that are located in the region of left and right chest, just under the pectoralis larger muscles. At the same place a network of nerve fibers is found which sends signal from spinal cord to the shoulder, arm and hand. This is the brachial plexus.
Answer:
B. Prokaryotic and Eukaryotic
Explanation:
Cells are of two types: eukaryotic, which contain a nucleus, and prokaryotic, which do not.
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Birds and mammals independently evolved four-chamber hearts
Answer is hypertonic.
The ability of an extracellular solution to make water move into or out of a cell by osmosis is known as its tonicity. Tonicity is concern for all living things, especially in in organisms lacking cell wall, <em>Paramecium</em> is one such protozoan. It has specialized structures called contractile vacuoles. A contractile vacuole collects excess water from the cell and release it out, keeping the cell from lysing as it takes on water from extracellular environment which hypotonic (a lower osmolarity than the cell’s cytoplasm) as compared to hypertonic environment inside <em>Paramecium</em>.
The second diagram best represents regeneration
