Chapter 21.4, Problem 1NV

Summary Introduction

To determine:

Definition of the terms, cotyledon, cone, annual, biennial, and perennial.

Explanation of Solution

Cotyledons are a part of an embryo that is present in a seed. These are the parts of the seed that help in nourishing the developing embryo initially and become the first leaf of a developing plant.

Cone or strobilus is a mass of reproductive structure in some non-flowering plants. These are present in two separate sexes; male cones contain pollen and are smaller than female gametophyte.

Annual means occurring once in a year. The plants that reproduce annually, produce their mature reproductive structure once in a year.

Biennial means occurring twice in a year. The plants that reproduce biennially, produce their mature reproductive structure twice in a year.

Perennial plants are those plants that live more than two years, and most of them are small flowering plants.