Insects are not characterized by:
1. The main body segments – head, thorax and abdomen
2. Three pairs of legs
3. Two pairs of antennae
4. Excretion by Malpighian tubules
Flame cells are excretory structures seen in:
1. | Platyhelminthes | 2. | Annelids |
3. | Arthropods | 4. | Cnidarians |
Body cavity is the cavity present between body wall and gut wall. In some animals, the body cavity is not lined by mesoderm. Such animals are called
1. | Acoelomate | 2. | Pseudocoelomate |
3. | Coelomate | 4. | Haemocoelomate |
Which of the following is not an Arthropod characteristic?
1. | Jointed appendages | 2. | Periodic molting |
3. | Closed circulation | 4. | Articulated exoskeleton |
In which of the following animals, the body is cylindrical and is composed of an anterior proboscis, a collar and a long trunk?
1. | Hemichordates | 2. | Urochordates |
3. | Cephalochordates | 4. | Vertebrate chordates |
A water vascular system is characteristically present in:
1. | Annelids | 2. | Porifers |
3. | Echinoderms | 4. | Cartilaginous fishes |
In Amphibia:
I: | Skin is moist without scales |
II: | A tympanum represents the ear |
III: | Fertilization is external |
1. | Only I and II are correct | 2. | Only I and III are correct |
3. | Only II and III are correct | 4. | I, II, and III are correct |
Which of the following is not a feature of Ctenophora?
1. Diploblastic organisms with tissue level of organization
2. Absence of Cnidocytes
3. Presence of internal ciliated comb plates
4. Bio-luminescence well marked in some members
Which of the following is not a feature of Porifera?
1. Exclusively marine animals
2. Presence of a water transport or a canal system
3. Sexes are not separate
4. Internal fertilization and indirect development
Ascaris is characterized by:
1. Presence of true coelom but absence of metamerism
2. Presence of true coelom and metamerism
3. Absence of true coelom but presence of metamerism
4. Presence of neither true coelom nor metamerism