Videos
Basis of Classification
2127
Practice: Basis of Classification
1351
Phylum Porifera, Coelenterata, Ctenophora
2551
Practice: Phylum Platyhelminthes, Aschelminthes and Annelida
2126
Phylum Arthropoda, Mollusca and Echinodermata
3898
Practice: Phylum Arthropoda, Mollusca and Echinodermata
1761
Phylum Hemichordata and Chordata
3071
Practice: Phylum Hemichordata and Chordata
1935
Subphylum Vertebrata- Agnatha and Pisces
3490
Practice: Subphylum Vertebrata- Agnatha and Pisces
1750
Subphylum Vertebrata- Tetrapoda
3910
Practice: Subphylum Vertebrata- Tetrapoda
2761
Chapter Overview
581
Chordates
50
Miscellaneous
131
Sessile Animals
126
Habit And Habitat
127
Body Organisation And Symmetry
159
Water Canal System
190
Reproduction And Development
215
Test Node
32
Great Barrier Reef
156
Habit And Habitat
199
Polyp And Medusa
76
Symmetry And Body Walls
91
Organ Of Defence - Cnidocyte
124
Physiology
120
Reproduction And Development
162
Test Node
30
Black Sea Invasion
130
Habitat
76
Comb Jellies
164
Symmetry And Body Walls
103
Physiology
76
Reproduction And Development
122
Test Node
43
Where Do You Think The Worm Is?
140
Body Plan
93
Hooks And Suckers
161
Incomplete Digestive System
81
Flame Cells
80
Reproduction And Development
190
Test Node
42
The Rod Of Asclepius
104
Body Plan
184
Roundworm Infection
237
Physiology
66
Reproduction And Development
150
Test Node
60
Blood Suckers
181
Segmented Worms - Body Plan
118
Digestive And Circulatory System
353
Nervous And Excretory System
154
Reproduction And Development
82
How Do They Move? - Parapodia
120
Test Node
53
Identify the animal whose body is a meshwork of cells, has an internal cavity lined with food filter
393
Imagine non-toxic dye being injected into sponges. Choose the correct path
287
Match the features with the correct animal.
295
Which of the following animals have nerve cells but no brain?
174
Find the correct features exhibited by phylum Ctenophora.
308
Planaria possesses high capacity of:
332
Which of the following is not a characteristic of members of platyhelminthes?
374
Ascaris is characterized by
280
Which of the following statement(s) are true regarding nematodes?
661
In which one of the following phylum name and its two characters are incorrectly matched?
464
Largest Phylum
73
Morphology
209
Body Plan
110
Significance
197
Respiration - Tracheal System
132
Respiration - Book Lungs And Book Gills
196
Circulatory System
101
Excretory System
79
Nervous System
521
Reproduction And Development
205
Test Node
45
Pearl Oysters
84
Habitat
77
Body Organisation
316
How Do Snails Hold Their Shells?
119
Physiology
118
Reproduction And Development
156
Test Node
47
Stars In The Ocean
134
Features
104
Level Of Organisation
177
Digestive System
67
Reproduction And Development
118
Water Vascular System
174
More Echinoderms
288
Test Node
31
Choose the following that is NOT true about Limulus (King crab).
220
Assertion (A): Ant has an open circulatory system.
203
Which of the following statements are correct about grasshopper?
345
Select the wrong statement about Pila:
270
File-like rasping structure used by Chiton for feeding is known as:
227
Water vascular system in Asterias is NOT composed of:
258
Match the following organisms with respective characteristics
231
General Features
208
Physiology
295
Reproduction And Development
153
Level Of Organisation
87
Test Node
47
We Belong To This Phylum.
39
Fundamental Features - I
428
Fundamental Features - II
181
General Features
119
Test Node
50
Chordata - Subphyla
152
The 3 Subphyla
432
Vertebrates And Invertebrates
97
Evolution Of Vertebrates
51
Unique Features
528
Classification Of Vertebrates
190
Which of the following is an incorrect characteristic of Hemichordata?
340
During retrogressive metamorphosis of the Ascidia tadpole, which one of the following
212
Select the incorrect statement with regard to Amphioxus.
245
Read the following characteristics and select the option with all correct statements
492
Assertion: Protochordates are grouped under Acraniata whereas vertebrates are grouped under Craniata
316
Match the following:
323
Select the incorrect statement about cyclostomes?
291
Which of the following statement(s) is correct about Chondrichthyes?
268
Group the following characteristics under the classes given below:
393
Identify the correctly matched pair
295
Match the following
499
Features Of Porifera
610
Porifera - Reproduction
214
Features Of Cnidaria
772
Cnidaria - Reproduction
162
Features Of Ctenophora
560
Ctenophora - Reproduction
122
Features Of Platyhelminthes
559
Platyhelminthes - Reproduction
190
Features Of Aschelminthes
593
Aschelminthes - Reproduction
149
Features Of Annelida
118
Annelida - Physiology
507
Annelida - Reproduction
203
The Major Phyla Of Animals
273
Levels of Organisation In Animals
202
Complexities Of Various Systems
124
Symmetry
255
Metamerism
126
Differentiation Of Germ Layers
254
Coelom
312
Notochord
119
Basis Of Classification - Test Node
108
Digestive system with a single opening is called ________ and with double opening is called ______.
414
When any plane passing through the central axis of the body divides the organism into two identical
343
Match the Following:
349
Which of the following options correctly labels the given diagram?
241
The Levels And Body Plan
599
Symmetry
254
Metamerism
125
Differentiation Of Germ Layers
254
Body Coelom
312
Notochord
118
Features Of Arthropoda
592
Arthropoda - Physiology
1031
Arthropoda - Reproduction
205
Features Of Mollusca
478
Mollusca - Physiology
238
Mollusca - Reproduction
156
Features Of Echinodermata
484
Echinodermata - Reproduction
118
Echinodermata - Unique Feature And Examples
463
Features Of Hemichordata
504
Hemichordata - Reproduction
153
Hemichordata - Body Organisation
87
Features Of Chordates
769
Protochordates - Urochordates And Cephalochordates
586
Subphylum - Vertebrata
869
Class Cyclostomata
916
Class Chondrichthyes
1019
Class Osteichthyes
1416
External Features
697
Physiology
73
Reproduction
145
Test Node
40
Chondrichthyes - External Features
582
Chondrichthyes - Physiology
86
Chondrichthyes - Reproduction
350
Class Chondrichthyes - Test Node
53
Class Osteichthyes - External Features
880
Class Osteichthyes- Physiology
535
Class Osteichthyes - Test Node
39
External Features
450
Physiology
492
Test Node
67
External Features
549
Physiology
256
Test Node
39
External Features
516
Physiology
363
Test Node
56
External Features
443
Physiology
627
Test Node
39
Class Amphibia
943
Class Reptilia
806
Class Aves
880
Class Mammalia
1071
Which of the following is incorrect about Rana tigrina?
541
An animal has a bony endoskeleton, a common opening of the alimentary canal and urinogenital tracts
262
Select the correct option with reference to Class Reptilia.
310
Identify the correct matching of a class with its character.
315
Which one of the following is a characteristic feature of Class Aves?
300
Which one of the following is not a character of animals in class Mammalia?
291
Which one of the following characteristics is not shared by birds and mammals?
224
Digestive system with a single opening is called ________ and with double opening is called ______.
414
When any plane passing through the central axis of the body divides the organism into two identical
343
Match the Following:
349
Which of the following options correctly labels the given diagram?
241
Identify the animal whose body is a meshwork of cells, has an internal cavity lined with food filter
393
Imagine non-toxic dye being injected into sponges. Choose the correct path
287
Match the features with the correct animal.
295
Which of the following animals have nerve cells but no brain?
174
Find the correct features exhibited by phylum Ctenophora.
308
Planaria possesses high capacity of:
332
Which of the following is not a characteristic of members of platyhelminthes?
374
Ascaris is characterized by
280
Which of the following statement(s) are true regarding nematodes?
661
In which one of the following phylum name and its two characters are incorrectly matched?
464
Choose the following that is NOT true about Limulus (King crab).
220
Assertion (A): Ant has an open circulatory system.
203
Which of the following statements are correct about grasshopper?
345
Select the wrong statement about Pila:
270
File-like rasping structure used by Chiton for feeding is known as:
227
Water vascular system in Asterias is NOT composed of:
258
Match the following organisms with respective characteristics
231
Which of the following is an incorrect characteristic of Hemichordata?
340
During retrogressive metamorphosis of the Ascidia tadpole, which one of the following
212
Select the incorrect statement with regard to Amphioxus.
245
Assertion: Protochordates are grouped under Acraniata whereas vertebrates are grouped under Craniata
316
Match the following:
323
"CBSE11BIO04ST007WC016 - A common characteristic of all vertebrates is the presence of ____________
216
Select the incorrect statement about cyclostomes?
291
Read the following characteristics and select the option with all correct statements
492
Which of the following statement(s) is correct about Chondrichthyes?
268
Identify the correctly matched pair
295
Match the following
499
Which of the following is incorrect about Rana tigrina?
541
Select the correct option with reference to Class Reptilia.
310
An animal has a bony endoskeleton, a common opening of the alimentary canal and urinogenital tracts
262
Identify the correct matching of a class with its character.
315
CBSE11BIO04ST007WC011- Which of the following adaptation/s is required for flight in birds?
293
Which one of the following is a characteristic feature of Class Aves?
300
Which one of the following is not a character of animals in class Mammalia?
291
Which one of the following characteristics is not shared by birds and mammals?
224
Digestive system with a single opening is called ________ and with double opening is called ______.
414
When any plane passing through the central axis of the body divides the organism into two identical
343
Match the Following:
349
Which of the following options correctly labels the given diagram?
241
Identify the animal whose body is a meshwork of cells, has an internal cavity lined with food filter
393
Imagine non-toxic dye being injected into sponges. Choose the correct path
287
Match the features with the correct animal.
295
Which of the following animals have nerve cells but no brain?
174
Find the correct features exhibited by phylum Ctenophora.
308
Planaria possesses high capacity of:
332
Which of the following is not a characteristic of members of platyhelminthes?
374
Ascaris is characterized by
280
Which of the following statement(s) are true regarding nematodes?
661
In which one of the following phylum name and its two characters are incorrectly matched?
464
Choose the following that is NOT true about Limulus (King crab).
220
Assertion (A): Ant has an open circulatory system.
203
Which of the following statements are correct about grasshopper?
345
Select the wrong statement about Pila:
270
File-like rasping structure used by Chiton for feeding is known as:
227
Water vascular system in Asterias is NOT composed of:
258
Match the following organisms with respective characteristics
231
Which of the following is an incorrect characteristic of Hemichordata?
340
During retrogressive metamorphosis of the Ascidia tadpole, which one of the following
212
Select the incorrect statement with regard to Amphioxus.
245
Assertion: Protochordates are grouped under Acraniata whereas vertebrates are grouped under Craniata
316
Match the following:
323
A common characteristic of all vertebrates is the presence of ____________
216
Select the incorrect statement about cyclostomes?
291
Read the following characteristics and select the option with all correct statements
492
Which of the following statement(s) is correct about Chondrichthyes?
268
Identify the correctly matched pair
295
Match the following
499
Which of the following is incorrect about Rana tigrina?
541
Select the correct option with reference to Class Reptilia.
310
An animal has a bony endoskeleton, a common opening of the alimentary canal and urinogenital tracts
262
Identify the correct matching of a class with its character.
315
Which of the following adaptation/s is required for flight in birds?
293
Which one of the following is a characteristic feature of Class Aves?
300
Which one of the following is not a character of animals in class Mammalia?
291
Which one of the following characteristics is not shared by birds and mammals?
224