A typical asteroid has an orbital period around the Sun of 5.2 years. How far from the Sun is this asteroid?
a. 5.2 AU
b. 10.4 AU
c. 27.0 AU
d. 3.0 AU
e. 2.3 AU
Answer: d. 3.0 AU
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Which of the following can result in speciation
within a few generations? a. development of a physical barrier b. polyploidy arising in a plant species c. postzygotic isolating mechanisms d. change in environmental conditions e. the introduction of a new predator into an area
The primary root of a plant that enlarges and persists throughout the life of the plant is the
A. fibrous root. B. companion root. C. rhizome. D. stoma. E. taproot.
What cells do not divide regularly but can be stimulated to divide when necessary?
a. Nondividing b. Mast c. Mitotic d. Facultative mitotic
Long-term storage of milk is made possible by ultra-high-temperature (pasteurization/sanitization/sterilization)
What will be an ideal response?