One in 20,000 babies is born with which specific cancer of the eye?
a. retinoblastoma.
b. scleral sarcoma.
c. malignant melanoma.
d. rhabdomyosarcoma.
e. lymphoma.
A
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Amanda was successfully treated for the P. aeruginosa infection, but on a subsequent visit to
the hospital, she was infected again. With this second infection, her immune system would ____________________.
a. respond more quickly to the antigen b. immediately start to produce memory cells c. have a reduced response due to recognizing the antigen d. not be able to fight off the infection
Which numbers identify structures that are found in ALL prokaryotes?
a. 2 and 4 b. 3 and 4 c. 1 and 5 d. 5 and 9 e. 7 and 8
. coli strains toxic to humans live in the intestine of ____ without sickening them
I. birds and frogs II. goats and sheep III. cattle and deer
a. I only b. I and II c. II and III d. I and III e. I, II, III
The phylum that includes snails, clams, oysters, and octopuses is the
A. Mollusca. B. Annelida. C. Phoronida. D. Brachiopoda. E. Ectoprocta.