Macrophages are derived from ________.
A. monocytes
B. neutrophils
C. granulocytes
D. basophils
Answer: A
You might also like to view...
The first reefs on earth were built by:
A. bacteria. B. calcified sponges. C. proteinaceous sponges. D. algae. E. corals.
A(n) ______ vector is an animal that not only transports an infectious agent from one host to another but plays a role in the life cycle of the pathogen
Fill in the blank(s) with the appropriate word(s).
During which one of the following phases of an action potential do the sodium channels close and potassium channels open, releasing potassium from the neuron?
A) depolarization B) reestablishment of resting potential C) saltatory propagation D) both depolarization and repolarization E) repolarization
What occurs during organogenesis?
What will be an ideal response?