1. | Pavo | 2. | Ornithorhynchus |
3. | Salamandra | 4. | Hippocampus |
Terrestrial adaptations necessitated the production of :
1. | Highly toxic nitrogenous wastes like urea and uric acid |
2. | Lesser toxic nitrogenous wastes like urea and uric acid |
3. | Lesser toxic nitrogenous wastes like ammonia and urea |
4. | Highly toxic nitrogenous wastes like ammonia and urea |
Match the items in Column - I with those in Column - II:
Column I | Column II | ||
(a) | Podocytes | (i) | Crystallised oxalate |
(b) | Protonephridia | (ii) | Annelids |
(c) | Nephridia | (iii) | Amphioxus |
(d) | Renal calculi | (iv) | Filtration slits |
(a) | (b) | (c) | (d) | |
1. | (iii) | (iv) | (ii) | (i) |
2. | (iii) | (ii) | (iv) | (i) |
3. | (iv) | (iii) | (ii) | (i) |
4. | (iv) | (ii) | (iii) | (i) |
Which one of the following options gives the correct categorization of six animals according to the type of nitrogenous wastes (A, B, C) they give out?
A AMMONOTELIC |
B UREOTELIC |
C URICOTELIC |
|
1. | Frog, Lizards | Aquatic Amphibia, Humans | Cockroach, Pigeon |
2. | Aquatic Amphibia | Frog, humans | Pigeon, Lizards, Cockroach |
3. | Aquatic Amphibia | Cockroach, Humans | Frog, Pigeon, Lizards |
4. | Pigeon, Humans | Aquatic Amphibia, Lizards | Cockroach, Frog |
Which one of the following characteristics is common in both humans and adult frogs?
1. Internal fertilization
2. Nucleated RBCs
3. Ureotelic mode of excretion
4. Four-chambered heart
1. birds and annelids
2. amphibians and reptiles
3. insects and amphibians
4. reptiles and birds
The principal nitrogenous excretory compound in humans is synthesised:
1. in kidneys but eliminated mostly through liver
2. in kidneys as well as eliminated by kidneys
3. in liver and also eliminated by the same through bile
4. in the liver, but eliminated mostly through kidneys
Uricotelism is found in:
1. Fishes and freshwater protozoans
2. Birds, reptiles, and insects
3. Frogs and toads
4. Mammals and birds