Review the key concepts, formulae, and examples before starting your quiz.
🔑Concepts
Classification of Plants based on size and stem type: Herbs (small, green, tender stems), Shrubs (medium-sized, woody stems branching near the base), and Trees (tall, hard, thick brown stems).
Creepers and Climbers: Creepers spread on the ground (e.g., Watermelon), while Climbers take support on neighboring structures to grow upwards (e.g., Money plant).
Classification of Animals based on Habitat: Terrestrial (Land), Aquatic (Water), Aerial (Air), and Arboreal (living mostly on trees).
Classification based on Food Habits: Herbivores (eat only plants), Carnivores (eat other animals), and Omnivores (eat both plants and animals).
Structural Diversity: Animals are divided into Vertebrates (with a backbone) and Invertebrates (without a backbone).
Habitats consist of two main components: Biotic (Living things like plants, animals, and ) and Abiotic (Non-living things like , , , , and ).
📐Formulae
💡Examples
Problem 1:
Identify the type of plant: A plant has a hard, thick stem with branches appearing high up on the stem, and it reaches a height of meters.
Solution:
Tree
Explanation:
Plants that are very tall and have hard and thick brown stems with branching in upper parts are classified as Trees.
Problem 2:
Categorize the following into Biotic and Abiotic factors: Grass, Rocks, Frog, Sunlight, Water, Fungi.
Solution:
Biotic: Grass, Frog, Fungi; Abiotic: Rocks, Sunlight, Water.
Explanation:
Biotic factors include all living organisms, whereas Abiotic factors include physical and chemical elements in the environment that are non-living.
Problem 3:
A scientist finds an animal that has no backbone but can live in . Is this a vertebrate or invertebrate?
Solution:
Invertebrate
Explanation:
Animals are classified as Invertebrates if they do not possess a vertebral column (backbone).