7th Std Science - Chapter 1: The Living World: Adaptations and Classification

This flashcard set covers the characteristics of living things, types of habitats, specific plant and animal adaptations, the necessity of classification, and the importance of biodiversity.

Growth

A characteristic where living things increase in size and develop with time.

Respiration

The process by which living organisms breathe to obtain energy.

Reproduction

The process by which living things produce young ones of their own kind.

Response to Stimuli

The reaction of living things to changes in their surroundings, such as the touch-me-not plant closing its leaves.

Excretion

The process of living organisms removing waste materials from their bodies.

Nutrition

The need for food for energy and growth in all living things.

Habitat

The natural place where an organism lives, such as a desert, forest, or ocean.

Adaptation

Special features or habits that help organisms survive, obtain food, and protect themselves in their habitat.

Desert Plant Adaptations

Features such as thick stems for water storage, leaves modified into spines, and waxy coatings to reduce water loss.

Aquatic Plant Adaptations

Features such as broad leaves and air spaces to help in floating, along with flexible stems.

Mountain Plant Adaptations

Features such as cone-shaped structures, sloping branches, and needle-like leaves.

Camel Adaptations

Features including a hump that stores fat, long legs, and broad feet for desert survival.

Fish Adaptations

Features including gills for breathing, a streamlined body, and fins for swimming.

Polar Bear Adaptations

Features such as thick fur, a thick layer of fat, and white color for camouflage in cold regions.

Bird Adaptations

Features such as hollow bones, wings for flying, and a streamlined body.

Classification

The process of grouping organisms based on similarities and differences to make study easier and organize information systematically.

Plants (Classification)

Organisms that contain chlorophyll, prepare their own food, and are usually fixed in one place.

Animals (Classification)

Organisms that cannot prepare their own food, move from place to place, and depend on other organisms for food.

Biodiversity

The variety of living organisms found in nature that maintains ecological balance and supports life on Earth.