General
✓✗Ommatidia serve the purpose of photoreception in
- cockroach
- frog
- humans
- sunflower
General
✓✗The role of the water vascular system in echinoderms is
A. Respiration and locomotion
B. Excretion and locomotion
C. Capture and transport of food
D. Digestion and respiration
E. Digestion and excretion
Choose the correct answer from the options given below.
A. Respiration and locomotion
B. Excretion and locomotion
C. Capture and transport of food
D. Digestion and respiration
E. Digestion and excretion
Choose the correct answer from the options given below.
- B and C only
- B, D and E only
- A and B only
- A and C only
General
✓✗The canal system is a characteristic feature of
- echinoderms
- sponges
- helminthes
- coelenterates
General
✓✗Heterocercal tail is found in
- Cartilaginous fishes
- Bony fishes
- Whale
- Amphibians
General
✓✗Green tree frog is
- flying frog
- surinam toad
- salamander
- hyla
General
✓✗The baleen plates of whales are
- modified teeth
- modified sebaceous glands
- modified integument (keratinous epidermal plates)
- modified tongue
General
✓✗Exoskeleton of arthropods is composed of:
- Glucosamine
- Cutin
- Cellulose
- Chitin
General
✓✗Urochordates and cephalochordates are often referred to as
- vertebrates
- agnathans
- protochordates
- hemichordates
General
✓✗In the given table which animal is correctly matched with its taxon group and character.
| Animal | Taxon | Character | |
| A. | Balanoglossus | Hemichordata | Circulatory system is closed type |
| B. | Hippocampus | Chondrichthyes | Air bladder is present |
| C. | Chameleon | Reptilia | Epidermal scales |
| D. | Locusta | Annelida | Parapodia |
- Combination A
- Combination B
- Combination C
- Combination D
General
✓✗The digestion in Hydra is
- Extracellular
- Intracellular
- Extracellular and intracellular
- Holozoic
General
✓✗Cnidarians get their name from
- their jointed appendages
- cnidoblasts (cnidocytes) present on the tentacles and body
- their canal system
- comb plates
General
✓✗Hair occur in all mammals except those of
- rodentia
- chiroptera
- primata
- cetacea
General
✓✗In case of poriferans, the spongocoel is lined with flagellated cells called
- oscula
- choanocytes
- mesenchymal cells
- ostia
General
✓✗In chordates, basically the pharynx is
- Perforated
- Non-perforated
- Present in the gut of the larva
- A source of thyroxin which controls metamorphosis
General
✓✗The greatest evolutionary change that enabled the land vertebrates to be completely free from water was the development of
- Four appendages
- Lungs
- Cleidoic eggs
- Four-chambered heart