Cells are typically small because _____.
A) a greater number of small cells can occupy any space compared to larger cells
B) just like sand and gravel, smaller objects can pack together more tightly
C) their volumes increase at a faster rate than the surface area
D) small cells require less food than large cells
Answer: C) their volumes increase at a faster rate than the surface area
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A transcribed region of DNA has a 5' to 3' sequence TTCATGGCGAc. The 5' to 3' sequence of an RNA transcribed from this DNA would be ____
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A bacterial genus that is found in large numbers in the intestinal tract of breast-fed infants is
A. Escherichia. B. Bifidobacteria. C. Bacteroides. D. Doderlein's bacillus.
Day-neutral plants are:
a. short-day plants b. able to bloom when they mature, regardless of night length c. night-blooming plants d. triggered to bloom by cold weather e. long-day plants
In what order would a vaccination needle pass
through the layers of the skin?
a. dermis-hypodermis-epidermis b. dermis-epidermis-hypodermis c. hypodermis-dermis-epidermis d. epidermis-dermis-hypodermis e. epidermis-hypodermis-dermis