AP BIOLOGY

Detailed explanation-1: -An annual, such as a zinnia, completes its life cycle in one year. Annuals are said to go from seed to seed in one year or growing season. During this period, they grow, mature, bloom, produce seeds and die.

Detailed explanation-2: -Perennial plants regrow every spring, while annual plants live for only one growing season, then die off. Perennials generally have a shorter blooming period compared to annuals, so it’s common for gardeners to use a combination of both plants in their yard.

Detailed explanation-3: -Perennials-Plants that persist for many growing seasons. Generally the top portion of the plant dies back each winter and regrows the following spring.

Detailed explanation-4: -Complete answer: Annual plants are the ones which flower only once in their lifetime and then they die. Biennial plants are the ones which flower twice in their lifetime and perennial plants are the ones which flower many times in their life cycle.