Diversity in Living World - Animal Kingdom

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Q1. What type of symmetry is exhibited by organisms in the phylum Porifera? (2021)

Solution:

Organisms in the phylum Porifera, such as sponges, exhibit asymmetry.

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Q2. What is the main characteristic of mammals? (2021)

Solution:

Mammals are characterized by the presence of hair or fur and mammary glands that produce milk.

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Q3. Which of the following groups of animals is known for having a three-chambered heart? (2020)

Solution:

Amphibians typically have a three-chambered heart, consisting of two atria and one ventricle.

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Q4. Which of the following organisms is an example of a cnidarian? (2021)

Solution:

Jellyfish belong to the phylum Cnidaria, which is known for its stinging cells called cnidocytes.

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Q5. What type of symmetry is exhibited by organisms in the phylum Platyhelminthes? (2022)

Solution:

Platyhelminthes, or flatworms, exhibit bilateral symmetry, which is a key characteristic of this phylum.

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Q6. Which class of animals is characterized by having scales and laying eggs on land? (2022)

Solution:

Reptiles are characterized by having scales and typically lay eggs on land.

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Q7. Which of the following is a characteristic of the phylum Annelida? (2023)

Solution:

Annelida, or segmented worms, are characterized by their segmented bodies.

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Q8. Which of the following is a characteristic feature of echinoderms? (2021)

Solution:

Echinoderms, such as starfish and sea urchins, are characterized by a water vascular system, which aids in movement and feeding.

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Q9. Which of the following is a feature of the phylum Annelida? (2022)

Solution:

Annelids, such as earthworms, are characterized by their segmented bodies.

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Q10. Which of the following groups of animals is known for having a water vascular system? (2020)

Solution:

Echinodermata, such as starfish and sea urchins, possess a unique water vascular system used for locomotion and feeding.