Diversity in Living World - Plants

Vocabulary flashcards covering key botanical terms, plant reproductive structures, and taxonomic classification principles from Class 9 Biology.

Taxonomy

The science of classifying organisms.

Species

A group of individual organisms with fundamental similarities.

Bryophytes

The simplest and most primitive form of land plants, including various mosses and liverworts.

Stamen

The male sex organ in the flower.

Pollination

The process where pollen grains, after being dispersed from the anthers, are carried by wind or various other agencies to the stigma of a pistil.

Flower

The reproductive part of angiosperms.

Monocotyledons (Monocots)

A group of flowering plants (angiosperms) that have only one cotyledon (seed leaf) in their seeds.

Dicotyledons

Flowering plants characterised by having two cotyledons in their seeds.

Types of Leaves

The main types of leaves are Simple Leaf and Compound Leaf.

Pistil

The female reproductive part of a flower, usually located at the centre of the flower, which plays a key role in reproduction by helping in pollination and fertilization.

Carolus Linnaeus Classification System

A two-kingdom system of classification proposed by Carolus Linnaeus, based on the mode of nutrition and locomotion.

Demerits of Linnaeus Classification

The system failed to separate or distinguish between prokaryotic and eukaryotic organisms, unicellular and multicellular organisms, and photosynthetic and non-photosynthetic organisms.

Hierarchy of Classification

The arrangement in classification where organisms that closely resemble one another are grouped, and different taxonomic units are arranged in increasing order of specificity of characters.

Categories

The various grouping levels or ranks in biological classification.

Taxon

Each category of organisms at a particular level considered as a unit in classification.