What is the difference between the segmentation of a tapeworm and an earthworm?
Important Questions on Classification of Living Organisms
Match List with List.
| List | List | ||
| (a) | Metamerism | (i) | Coelenterata |
| (b) | Canal system | (ii) | Ctenophora |
| (c) | Comb plates | (iii) | Annelida |
| (d) | Cnidoblasts | (iv) | Porifera |
Study the following statements
A) Corallium rubrum is the precious red stone coral that belongs to Scyphozoa
B) Renette gland is an excretory gland found in round worms
C) Tubifex is an aquatic annelid
D) In chilopods, maxillae are modified into gnathochilarium
Among the above, the incorrect statements are
A) Male genital apertures
B) Spermathecal apertures
C) Nephridiopores
D) Female genital aperture
Arrange the apertures in a correct sequence from the anterior end to the posterior end
Match Column I with Column II & mark the correct option.
| Column-I | Column- II |
|---|---|
| (A) Choanocytes | 1. Platyhelminthes |
| (B) Cnidoblasts | 2. Ctenophora |
| (C) Flame cells | 3. Porifera |
| (D) Nephridia | 4. Coelenterata |
| (E) Comb plates | 5. Annelida |
Match the larval stages (in column I) with their corresponding animals (in column II) and select the correct option.
| Column I | Column II | ||
| I. | Planula | i. | Holothuria (Sea cucumber) |
| II. | Trocophore | ii. | Hermit crab |
| III. | Glochidium | iii. | Obelia |
| IV. | Glaucothoe | iv. | Neresis |
| v. | Unio | ||
Which of the following is not a differentiating feature between Hirudinaria and Nereis?
a. Presence of nephridia to remove excretory waste.
b. Indirect development.
c. Dioecious with sexual dimorphism.
d. Presence of parapodia.
Which one of the following is a matching pair of a body feature and the animal possessing it?
I (Excretory organs) |
II (Animals) |
||
|---|---|---|---|
| (a) | Nephridia | (i) | Hydra |
| (b) | Malpighian tubules | (ii) | Leech |
| (c) | Protonephridia | (iii) | Shark |
| (d) | Kidneys | (iv) | Roundworms |
| (v) | Cockroach |
