Vascular plants differ from nonvascular plants in a. how they make food. b. where they obtain materials. c. how they transport materials. d. how they reproduce.

Place the steps tor the formation of the enzyme pepsinogen in correct order

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

The intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?