Plants that require short nights to flower are called plants. a. long-day c. day-neutral b. short-day d. periodic

What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds

Which group is noted for the independence of gametophyte and sporophyte generations from each other? a) ferns b) mosses, hornworts, and liverworts c) charophytes d) angiosperms e) gymnosperms

Through which structure do the sperm travel to exit the testes?