Which of the following animals does not undergo metamorphosis?
Earthworm
Tunicate
Starfish
Moth
A.
Earthworm
Metamorphosis refers to the transformation of a larva into an adult.
The animal that performs metamorphosis is said to have indirect development.
In earthworm, development is direct which means no larval stage and hence no metamorphosis.
Which of the given option is correct regarding the statements?
Statement I: Cephalochordata bears notochord all along the body throughout life.
Statements II: Urochordate bears vertebral column only in the tail region throughout the life.
I wrong, II correct
I correct, II wrong
Both I and II are wrong
Both are correct
An important characteristic that Hemichordates share with Chordates is
Absence of notochord
Ventral tubular nerve cord
Pharynx with gill slits
Pharynx with gill slits
Which among these is the correct combination of aquatic mammals?
Seals, Dolphins, Sharks
Dolphins, Seals, Trygon
Whales, Dolphins, Seals
Whales, Dolphins, Seals
Which of the following features is used to identify a male cockroach from a female cockroach?
Presence of a boat-shaped sternum on the 9th abdominal segment
Presence of caudal styles
Presence of anal cerci
Forewings with darker tegmina
Torsion of visceral mass is seen in animals belonging to the class
Cephalopoda
Scaphopoda
Amphineura
Gastropoda
Match the following columns.
| Column I | Column II | ||
| A. | Pinocytosis | 1. | Euglena Gracillis |
| B. | Hotozoic | 2. | Paramecium |
| C. | Parasitic | 3. | Amoeba Proteus |
| D. | Mixotrophic | 4. | Monocystis |
| A | B | C | D |
| 3 | 2 | 4 | 1 |
| A | B | C | D |
| 2 | 3 | 4 | 1 |
| A | B | C | D |
| 4 | 3 | 1 | 2 |
| A | B | C | D |
| 1 | 4 | 2 | 3 |
