The sugars found in nucleic acids consist of
A. 3 carbon atoms.
B. 5 carbon atoms.
C. 7 carbon atoms.
D. 9 carbon atoms.
B
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In a frog in which the diploid number of chromosomes per cell is 24, what is the total number of chromatids present during prophase I?
a. 4 b. 6 c. 12 d. 24 e. 48
The Age of Dinosaurs can also be called the Age of
a. Cycads. b. Ginkgos. c. Ferns. d. Conifers. e. the Seed.
Baroreceptors detect
a. chemical substances. b. pressure changes. c. vibrational changes. d. light wavelengths. e. changes in solute concentration.
A population of grasshoppers in the Kansas prairie has two color types: green and brown. Typically, the prairie receives enough rainfall to maintain healthy, green grass. Assume a bird species that eats grasshoppers moves into the prairie
How will this affect the natural selection of the grasshoppers? How might this change in a drought year, when the grass turns brown?