What statement about deuterostomes is false?
A. Their anus forms first during gut development.
B. The group includes arthropods.
C. They are a paraphyletic group.
D. The group includes chordata.
E. Both A and C
F. Both B and C
G. Both A and B
Answer: F. Both B and C
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What would you expect to find within connective tissue?
A. collagen B. polysaccharides C. elastin D. All of the above are correct.
Which cell is the most abundant in the human body?
a. lymphocytes b. basophils c. erythrocytes d. neutrophils e. platelets
A person you know has been in an automobile accident. After the accident, you notice a dramatic personality change
Before the accident, he was industrious and well liked; after the accident, he is profane, impetuous, and incapable of working toward a goal. Which portion of the brain was most likely damaged? A) occipital lobe B) temporal lobe C) frontal lobe D) parietal lobe
The perforin-granzyme pathway involves
A) the production of fever, which kills the pathogen. B) the production of antibodies toward the invading pathogen. C) the synthesis of special cell-killing proteins that act on infected or abnormal cells. D) presenting the foreign antigen to B cells. E) binding CD95L to infected cells, which eventually leads to cell apoptosis.