1 Pheretima - Flame cells help in excretion and osmoregulation
2 Calotes - Body is covered by dermal scales
3 Ophiura - Closed circulatory system
4 Trygon - Possesses a poison sting
Explanation:
Trygon possesses a poison sting. In Pheretima, nephridia (not flame cells) help for excretion and osmoregulation. Reptiles (e.g., Calotes ) have epidermal scales. Circulatory system of echinoderms (e.g., Ophiura ) is of open type.
BIOXI04: ANIMAL KINGDOM
332528
How many of the following statements are incorrect for reptiles : I. They have creeping or crawling mode of locomotion II. Heart is usually four - chambered III. Snakes and lizards shed their scales as skin cast IV. Fertilisation is internal
1 Four
2 One
3 Three
4 Two
Explanation:
One statement is wrong. Heart is usually 3-chambered with exception of Crocodiles (4 chambered heart).
1 Pheretima - Flame cells help in excretion and osmoregulation
2 Calotes - Body is covered by dermal scales
3 Ophiura - Closed circulatory system
4 Trygon - Possesses a poison sting
Explanation:
Trygon possesses a poison sting. In Pheretima, nephridia (not flame cells) help for excretion and osmoregulation. Reptiles (e.g., Calotes ) have epidermal scales. Circulatory system of echinoderms (e.g., Ophiura ) is of open type.
BIOXI04: ANIMAL KINGDOM
332528
How many of the following statements are incorrect for reptiles : I. They have creeping or crawling mode of locomotion II. Heart is usually four - chambered III. Snakes and lizards shed their scales as skin cast IV. Fertilisation is internal
1 Four
2 One
3 Three
4 Two
Explanation:
One statement is wrong. Heart is usually 3-chambered with exception of Crocodiles (4 chambered heart).
1 Pheretima - Flame cells help in excretion and osmoregulation
2 Calotes - Body is covered by dermal scales
3 Ophiura - Closed circulatory system
4 Trygon - Possesses a poison sting
Explanation:
Trygon possesses a poison sting. In Pheretima, nephridia (not flame cells) help for excretion and osmoregulation. Reptiles (e.g., Calotes ) have epidermal scales. Circulatory system of echinoderms (e.g., Ophiura ) is of open type.
BIOXI04: ANIMAL KINGDOM
332528
How many of the following statements are incorrect for reptiles : I. They have creeping or crawling mode of locomotion II. Heart is usually four - chambered III. Snakes and lizards shed their scales as skin cast IV. Fertilisation is internal
1 Four
2 One
3 Three
4 Two
Explanation:
One statement is wrong. Heart is usually 3-chambered with exception of Crocodiles (4 chambered heart).
1 Pheretima - Flame cells help in excretion and osmoregulation
2 Calotes - Body is covered by dermal scales
3 Ophiura - Closed circulatory system
4 Trygon - Possesses a poison sting
Explanation:
Trygon possesses a poison sting. In Pheretima, nephridia (not flame cells) help for excretion and osmoregulation. Reptiles (e.g., Calotes ) have epidermal scales. Circulatory system of echinoderms (e.g., Ophiura ) is of open type.
BIOXI04: ANIMAL KINGDOM
332528
How many of the following statements are incorrect for reptiles : I. They have creeping or crawling mode of locomotion II. Heart is usually four - chambered III. Snakes and lizards shed their scales as skin cast IV. Fertilisation is internal
1 Four
2 One
3 Three
4 Two
Explanation:
One statement is wrong. Heart is usually 3-chambered with exception of Crocodiles (4 chambered heart).
