A benign tumor is a condition in which tumor cells _______.
A. have an unusual number of chromosomes
B. remain confined to their original site
C. migrate from the initial site of transformation to other organs or tissues
D. invade the circulatory system
B. remain confined to their original site
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What organ(s) are more likely to be affected by teratogen exposure in the 16th week?
1.External genitals 2.Heart 3.Palate 4.Upper limbsPeripheral vascular diseases are disorders of the blood vessels that are located outside of the heart and brain.
Answer the following statement(s) true (T) or false (F)
Which of the following co-evolved with insects?
a. flowering plants b. algae c. parasites d. crustaceans e. segmented worms
During inhalation, ____
a. thoracic volume decreases b. the diaphragm contracts by flattening c. pressure in the alveoli doesn't change d. the ribs are moved downward e. atmospheric pressure falls