A ________ is a congenital anomaly that results in skin discoloration due to blood vessels that proliferate and form a benign tumor.
Fill in the blank(s) with the appropriate word(s).
hemangioma
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This stage of cancer is often terminal and is the most difficult to treat
A) Stage I B) Stage II C) Stage III D) Stage IV
Explain the role of the chorion in formation of the embryonic part of the placenta
What will be an ideal response?
The blood vessel that is formed by the joining of the vertebral arteries and supplies blood to the circle of Willis from the posterior side is the
A) internal carotid artery. B) middle cerebral artery. C) anterior communicating artery. D) basilar artery. E) ophthalmic artery.
Which of the following will cause the plasma membrane to hyperpolarize when at its resting membrane potential?
A. An inflow of Na+ B. An inflow of Cl? C. An inflow of K+ D. An outflow of Cl? E. An inflow of Ca2+