Answer:
C. Macrophages
Explanation:
Macrophages are derived from monocytes of the bone marrow. They migrate to connective tissue and are in charge of phagocytosis of foreign particles. They also participate in the enhancement of inmunological activities of lymphocytes. Macrophages can be found in infection sites, since they detect, phagocytose and destroy bacteria and other harmful organisms.
Answer: False
Explanation:
In case any victim is suspected from the spinal or neck injury then the victim should not be moved on any side. He must be left untouched.
Doing so can make the person permanently paralysed. Try to cover the front and back of the neck with rolled piece of clothe but do not move the person unnecessarily.
Hence, the given statement is False.
Answer:
25 quarters, 23 dimes, and 0 nickels.
Explanation:
Let n = number of nickels, q = number of quarters, and d = number of dimes
n + d = q - 2
n + d + q = 48
8.05 = .25q + .1d + .05n
so
(q-2) + q = 48
2q = 50
q = 25
Using that q value:
n + d = q - 2 --> n + d = 25 - 2 --> n + d = 23 --> n = 23 - d
Using that n value and q value:
8.05 = .25(23) + .1d + .05(23 - d)
8.05 = 5.75 + .1d + 1.15 - .05d
2.30 = 1.15 + .05d
1.15 = .05d
23 = d
Using that d value and q value:
n + d + q = 48 --> n + 23 + 25 = 48
n + 48 = 48
n = 0
Therefore there are 25 quarters, 23 dimes, and 0 nickels.
Checking that with:
8.05 = .25q + .1d + .05n
8.05 = .25(23) + .1(23) + .05(0)
8.05 = 5.75 + 2.30 + 0
8.05 = 8.05 ✓
