Which statement about annuals and biennials reproduction is correct?

Which statement about annuals and biennials reproduction is correct?

• A. Both annuals and biennials reproduce only by seed.
• B. Annuals reproduce by seed; Biennials reproduce by vegetative means.
• C. Biennials reproduce by seeds; Annuals reproduce by vegetative means.
• D. Annuals reproduce by seeds; Biennials reproduce by seeds only.

Answer: (A)

Annuals complete their entire life cycle in one growing season and reproduce by seeds produced that same year. Biennials live for two years: in the first year they grow vegetatively, and in the second year they flower and set seeds, then the cycle ends. So their primary mode of reproduction is through seeds, with flowering and seed production occurring in the second year. Because both types rely on seed as the main way to propagate, the statement that they reproduce only by seed is correct. While some plants can spread vegetatively in other contexts, that is not the typical or defining reproductive method for these life cycle categories.

Annuals complete their entire life cycle in one growing season and reproduce by seeds produced that same year. Biennials live for two years: in the first year they grow vegetatively, and in the second year they flower and set seeds, then the cycle ends. So their primary mode of reproduction is through seeds, with flowering and seed production occurring in the second year. Because both types rely on seed as the main way to propagate, the statement that they reproduce only by seed is correct. While some plants can spread vegetatively in other contexts, that is not the typical or defining reproductive method for these life cycle categories.