3.1 Annelida — RBR Life Science

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3.1 Annelida Test 1 11 questions • segmentation, nephridia, setae, polychaetes ▾

Quiz

3.1 Annelida Test 2 11 questions • segmentation, nephridia, setae, polychaetes ▾

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3.1 Annelida — Test 1

Q1. The term 'Annelida' was coined by:✓ Lamarck

Q2. The clitellum (genital region) of the earthworm helps in:✓ Forming a cocoon for the eggs during reproduction

Q3. The larval stage in the development of a polychaete worm is the:✓ Trochophore

Q4. The main excretory product of the earthworm is:✓ Ammonia and urea

Q5. The excretory organs of the earthworm are the:✓ Nephridia

Q6. Botryoidal tissue is found in:✓ Hirudinaria (leech)

Q7. The gizzard, used for grinding food, is found in the:✓ Earthworm

Q8. Earthworms are hermaphrodite but avoid self-fertilisation, so they are:✓ Hermaphrodite with cross-fertilisation

Q9. The respiratory pigment haemoglobin dissolved freely in the plasma is found in the:✓ Earthworm

Q10. Metamerism (true segmentation) is well shown by the:✓ Leech

Q11. Leech saliva contains an anticoagulant called:✓ Hirudin

3.1 Annelida — Test 2

Q12. Which is NOT a characteristic of the phylum Annelida?✓ Presence of a notochord

Q13. Atoke and epitoke phases during reproduction occur in:✓ Nereis

Q14. Parapodia, flap-like locomotory and respiratory structures, are characteristic of:✓ Polychaete annelids (e.g. Nereis)

Q15. The closed circulatory system of the earthworm means that:✓ Blood flows entirely within vessels

Q16. Setae (chaetae) in the earthworm function in:✓ Locomotion (gripping the soil)

Q17. Annelids possess which kind of body cavity?✓ A true coelom (eucoelom)

Q18. Hydrostatic skeletal movement, using fluid pressure in the body cavity, is characteristic of:✓ Annelida

Q19. Earthworms are important to agriculture because they:✓ Aerate and enrich the soil

Q20. Leeches differ from earthworms in that leeches:✓ Lack setae and have suckers at both ends

Q21. Septa between the segments of an earthworm function to:✓ Divide the coelom, allowing independent segment movement

Q22. The dorsal and ventral blood vessels of the earthworm are connected in the anterior region by:✓ Contractile 'hearts' (lateral hearts)