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Diversity in the Living World - How to Group Plants and Animals

Grade 6CBSE

Review the key concepts, formulae, and examples before starting your quiz.

🔑Concepts

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Classification is the process of grouping living organisms based on similarities and differences in their characteristics, which helps in organized study.

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Plants are primarily grouped based on their size, nature of stem, and lifespan into categories: Herbs, Shrubs, and Trees.

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Herbs are small plants with soft, green, and tender stems, usually having a height of less than 11 meter.

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Shrubs are medium-sized plants with woody stems that branch out near the base, typically ranging from 11 to 33 meters in height.

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Trees are tall plants with a single, hard, thick brown stem called a trunk, branching out much higher above the ground.

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Creepers are plants with weak stems that cannot stand upright and spread on the ground, while Climbers take support on neighboring structures to grow upwards.

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Animals are classified based on the presence of a backbone into Vertebrates (with backbone, e.g., Fish,Birds,HumansFish, Birds, Humans) and Invertebrates (without backbone, e.g., Insects,EarthwormsInsects, Earthworms).

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Based on feeding habits, animals are grouped into Herbivores (eat only plants), Carnivores (eat only other animals), and Omnivores (eat both plants and animals).

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Habitats also serve as a basis for grouping: Aquatic (water-dwelling), Terrestrial (land-dwelling), Arboreal (tree-dwelling), and Aerial (flying animals).

📐Formulae

Living Organisms→{PlantsAnimalsLiving \: Organisms \rightarrow \begin{cases} Plants \\ Animals \end{cases}

Plants→Herbs, Shrubs, Trees, Creepers, ClimbersPlants \rightarrow \text{Herbs, Shrubs, Trees, Creepers, Climbers}

Animals→Backbone{VertebratesInvertebratesAnimals \xrightarrow{Backbone} \begin{cases} Vertebrates \\ Invertebrates \end{cases}

Feeding Groups=Herbivores+Carnivores+OmnivoresFeeding \: Groups = \text{Herbivores} + \text{Carnivores} + \text{Omnivores}

💡Examples

Problem 1:

Classify a Mango tree and a Rose plant based on their stem characteristics.

Solution:

Mango tree is a Tree; Rose plant is a Shrub.

Explanation:

A Mango tree has a thick, hard, woody trunk with branches high above the ground. A Rose plant has a thin woody stem with branches appearing near the base of the plant.

Problem 2:

To which category does a Pumpkin plant belong if it has a weak stem and spreads on the soil?

Solution:

Creeper.

Explanation:

Plants with weak stems that cannot stand upright and instead spread on the ground are classified as Creepers.

Problem 3:

If an animal eats both GrassGrass and InsectsInsects, identify its feeding group.

Solution:

Omnivore.

Explanation:

Organisms that consume both plant-based matter (GrassGrass) and animal-based matter (InsectsInsects) are classified as Omnivores.