________ are blade-shaped teeth that function in cutting or clipping
A) Canines
B) Bicuspids
C) Cuspids
D) Incisors
E) Molars
Answer: D
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Apoptosis has been implicated in a great number of disease states. Which of the following is probably not a consequence of errors in apoptosis?
A)A cell population that is triggered to undergo apoptosis would be diminished. An example is that HIV signals apoptosis in an important immune cell called the T helper cell. The reduction in T helper cells leads to the diminished immunity in Acquire Immunodeficincy Disease (AIDS). B)Failure of apoptosis in menstruating women could lead to cells that persist beyond their normal monthly cycle. A condition similar to this would be endometriosis. C)Excessive apoptosis would lead to cancerous growth of cells. An example is the inhibition of tumor suppressor genes like p53. D)Removing the tissue between fingers and toes during development relies on apoptosis. Thus, failure of apoptosis could lead to webbed toes.
A typical embryonic atrial defect in the heart leads to enlargement of the right side of the heart.
Indicate whether the statement is true or false.
Which of the following statements applies to the autonomic nervous system (ANS)?
A. The receptor molecules of the ANS may be muscarinic, nicotinic, or adrenergic. B. A single neuron from the spinal cord carries action potentials to effector organs in the ANS. C. The ANS controls unconscious movement of skeletal muscles. D. ANS functions are consciously controlled. E. The ANS innervates skeletal muscle.
Identify the ganglion cell layer
a) A b) B c) C d) D