Q. No.The phylum with exclusively marine animals is:
1.
Porifera
2.
Cnidaria
3.
Ctenophora
4.
Platyhelminthes
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following is not a feature of birds?
| 1. | Forelimbs modified into wings |
| 2. | Single occipital condyle |
| 3. | Ten pairs of cranial nerves |
| 4. | Four chambered heart |
Chordates are not characterized by:
| 1. | Ventral nerve cord | 2. | Post anal tail |
| 3. | Gill slits | 4. | A notochord |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Notochord is derived from embryonic:
1. Ectoderm
2. Mesoderm
3. Endoderm
4. Ectoderm and Mesoderm
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Identify the phylum where the body cavity is not lined by mesoderm, instead, the mesoderm is present as scattered pouches between ectoderm and endoderm :
1. Cnidaria
2. Platyhelminthes
3. Mollusca
4. Aschelminthes
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Sponges are mostly:
| 1. | Asymmetrical | 2. | Radially symmetrical |
| 3. | Bilateraly symmetrical | 4. | Biradially symmetrical |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
What is present between ectoderm and endoderm in diploblastic animals?
1. Mesenteron
2. Mesenchyme
3. Mesorchium
4. Mesoglea
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Mammals are not characterized by:
1. Presence of hair
2. Presence of mammary glands
3. Homodont dentition
4. Endothermy
The presence of mutable collagenous tissue is an important feature of:
1. Annelida
2. Echinodermata
3. Porifera
4. Molluska
© 2025 GoodEd Technologies Pvt. Ltd.