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

Sponges are mostly:

What is present between ectoderm and endoderm in diploblastic animals?
1. Mesenteron
2. Mesenchyme
3. Mesorchium
4. Mesoglea

Mammals are not characterized by:
1. Presence of hair
2. Presence of mammary glands
3. Homodont dentition
4. Endothermy

“Amniotes” do not include:
1. Amphibians
2. Reptiles
3. Birds
4. Mammals

The presence of mutable collagenous tissue is an important feature of:
1. Annelida
2. Echinodermata
3. Porifera
4. Molluska

Closed circulatory system is not seen in:

Which of the following statements is not true about Nematodes?
1. They are bilaterally symmetrical, un-segmented worms
2. They are covered with a flexible, thick cuticle that is molted four times as they grow
3. They possess cilia or flagella on their reproductive cells
4. They possess a hydrostatic skeleton

What is not true regarding Cnidarians?
1. Body is mode of distinct tissues but true organs have not evolved
2. They are carnivores
3. They may have two body forms – polyps and medusa
4. The digestion is completely intra-cellular

Radially symmetrical animals:
1. Are all triploblastic
2. Tend to be sessile and passively floating
3. Have a definite head and a brain
4. Have an anterior and a posterior end