Question

the age of the wood affects the speed at which layers root; younger (1-year-old) wood generally roots ______ older wood.
a. more heavily than
b. at the same speed as
c. more rapidly than
d. more slowly than

Explanation:

In horticulture (a subfield of Biology, which is in Natural Science), younger wood (1 - year - old) typically has more active growth and development processes. This means it roots more rapidly compared to older wood, as older wood has slower metabolic and growth - related activities. Option a is incorrect as "more heavily" is not the right term for root speed. Option b is wrong because age affects root speed. Option d is incorrect as younger wood roots faster, not slower.

Answer:

c. more rapidly than