Answer:
1. An annual plant is a plant that completes its life cycle, from germination to the production of seeds, within one growing season, and then dies
2.A biennial plant is a flowering plant that takes two years to complete its biological life cycle. In the first year, the plant undergoes primary growth, in which its leaves, stems, and roots develop. Usually, the stem of the plant remains short and the leaves are low to the ground, forming a rosette
3.A perennial plant or simply perennial is a plant that lives more than two years. The term is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also widely used to distinguish plants with little or no woody growth from trees and shrubs, which are also technically perennials