To date, humans have interfered with all of the biogeochemical cycles on Earth, but this interference has been of the greatest magnitude, in terms of human-induced changes in climate, in the

A) hydrologic cycle.
B) nitrogen cycle.
C) carbon cycle.
D) sulfur cycle.
E) phosphorus cycle.

All woody plants are:

A) annuals.
B) biennials.
C) perennials.
D) deciduous.
E) evergreen.

An archegoniophore is found in certain liverworts.

An alternate leaf arrangement is one in which there is one leaf per node.