Study the following statements regarding unisexual annelids.
I) These are bristle worms
II) Gonoducts are present
III) Head is distinct with sense organs
IV) Internal fertilisation
The correct statements are
Important Questions on Classification
| Column – I | Column – II | ||
|---|---|---|---|
| Pila | Flame cells | ||
| Bombyx | Comb plates | ||
| Pleurobrachia | Radula | ||
| Taenia | Malpighian tubules |
Select the correct option from the following:
Match the following columns and select the correct option.
| Column-I | Column-II | ||
| (a) | Gregarious, polyphagous pest | (i) | Asterias |
| (b) | Adult with radial symmetry and larva with bilateral symmetry | (ii) | Scorpion |
| (c) | Book lungs | (iii) | Ctenoplana |
| (d) | Bioluminescence | (iv) | Locusta |
Aristotle's lantern is found in echinoids
Glochidium is the larva of cephalopods
Scorpions respire with book lungs.
Parapodia are found in oligochaetes
| Column-I | Column-II |
| Flame cells | Sponges |
| Collar cells | Hydra |
| Stinging cells | Planaria |
Observe the following simplified scheme and choose the correct option that matches with the letters given in the boxes.
I) Colloblasts are found in sea gooseberries
II) Larva of cestodes is Muller's larva
III) Nematodes have renette gland for excretion
IV) Stomochord is found in hemichordates
Match the following
| List - I | List - II | ||
| (a) | Crab | (i) | Green glands |
| (b) | Dugesia | (ii) | Malpighian tubules |
| (c) | Wuchereria | (iii) | Renette glands |
| (d) | Scolopendra | (iv) | Flame cells |
The correct answer is
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
In the following passage there are blanks, each of which has been numbered. There are questions given below the passage and for each question, four words are suggested, one of which fits the blank appropriately. Find out the appropriate word in each case.
Whenever I go into a bank, I feel scared. Everybody and everything that I see there (1) ____ me. As for the manager the sight (2) ____ him simply terrifies me and (3) ____ me want to runaway (4) _____ I can. As soon as I (5) ____ the door of the bank I lose my head (6) ____ when I try to do any (7) ____ there, I behave like an idiot. I cannot explain (8) ____ for this but that is how it (9) ____ has been that is how it is (10) ____.
Select the most appropriate option for blank No. 10.
