“Z” stands for blood type
a. A.
b. B.
c. AB.
d. O.
e. any of these.
Answer: c
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Naegleria fowleri is a free-living ________ that causes infection by ________
A) amoeba / entering through the nose and burrowing into the brain B) fungus / entering the lungs when contaminated soil is disturbed C) flagellated protist / crossing the intestinal mucosa into the blood D) protist / entering the vagina in women, the prostate and seminal vesicles of men, or the urethra of both males and females
The earliest land plants appeared in the fossil record:
A. about 500 million years ago B. about 300 million years ago C. about 100 million years ago D. a billion years ago E. about 10 million years ago
The organelle that best enables an athlete's tissues to be metabolically active are
A. ribosomes. B. lysosomes. C. smooth endoplasmic reticulum. D. mitochondria. E. contractile vacuoles.
Four of the five answers listed below exhibit a dominant sporophyte stage. Select the exception
a. Bryophytes b. Monocots c. Eudicots d. Gnetophytes e. Cycads