Class 7 Exam > Class 7 Notes > Biology Class 7 ICSE > Worksheet: Classification of Animals
Worksheet: Classification of Animals | Biology Class 7 ICSE PDF Download
Part A — Multiple Choice Questions
Q1. In which kingdom do prokaryotic, single-celled organisms with a nucleoid (no true nucleus) belong?
(a) Protista
(b) Monera
(c) Fungi
(d) Plantae
Q2. The tiny “false feet” that help Amoeba move and capture food are called
(a) Cilia
(b) Flagella
(c) Pseudopodia
(d) Hyphae
Q3. In bread mould, the round structure at the tip that holds spores is the
(a) Mycelium
(b) Hypha
(c) Sporangium
(d) Capsule
Q4. Which statement correctly distinguishes algae and fungi?
(a) Both have chlorophyll and make food
(b) Algae lack chlorophyll; fungi have chlorophyll
(c) Algae have chlorophyll (make food); fungi lack chlorophyll (feed on dead matter)
(d) Both are animals
Q5. Plants that bear seeds not enclosed in fruits (often in cones) are
(a) Angiosperms
(b) Ferns
(c) Mosses
(d) Gymnosperms
Part B: Short Answer Type Questions
Q6. State two differences between invertebrates and vertebrates.
Q7. Write two features of Cnidaria with examples.
Q8. What are arthropods? Name any two examples.
Q9. How does an amoeba move and capture its food?
Q10. Mention two adaptations of fishes for living in water.
Part C: Long Answer Type Questions
Q11. Explain the main features of Amphibians with examples.
Q12. Describe the characteristics of mammals.
Q13. Compare any three classes of invertebrates with their features and examples.
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FAQs on Worksheet: Classification of Animals - Biology Class 7 ICSE
| 1. What are the main classifications of animals based on their characteristics? |  |
Ans.Animals are primarily classified into two main categories: vertebrates and invertebrates. Vertebrates are animals that have a backbone, which includes mammals, birds, reptiles, amphibians, and fish. Invertebrates, on the other hand, do not have a backbone and include groups such as insects, arachnids, mollusks, and annelids. Each group has distinct characteristics and adaptations that suit their environments.
| 2. How do scientists classify animals and what criteria do they use? | |
Ans.Scientists classify animals based on several criteria including anatomical features, reproductive methods, genetic information, and evolutionary relationships. Key characteristics such as body structure, type of skeleton, mode of reproduction, and habitat are considered. This systematic classification helps in understanding the biodiversity of life forms and their interrelationships.
| 3. What is the difference between warm-blooded and cold-blooded animals? | |
Ans.Warm-blooded animals, also known as endothermic animals, can regulate their body temperature internally regardless of the external environment. This group includes mammals and birds. Cold-blooded animals, or ectothermic animals, depend on external environmental conditions to regulate their body temperature. This includes reptiles, amphibians, and fish. The ability to maintain body temperature affects their behavior and habitat preferences.
| 4. Why is the classification of animals important in biology? | |
Ans.Classification of animals is crucial in biology as it helps scientists organize and understand the vast diversity of life on Earth. It provides a framework for identifying species, studying their relationships, and understanding their ecological roles. Additionally, classification aids in conservation efforts by highlighting species that are endangered or at risk, allowing for better management and protection strategies.
| 5. How do adaptations in animals relate to their classification? | |
Ans.Adaptations in animals are traits that have evolved over time to help them survive and thrive in their specific environments. These adaptations can be structural, behavioral, or physiological. The presence of certain adaptations often plays a significant role in how animals are classified. For example, animals that live in aquatic environments may have adaptations like gills or fins, which classify them within specific groups of vertebrates, such as fish or amphibians.
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Sep 04, 2025
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