Which of the following statement is correct?

Bats can travel with:

Solenocytes and metanephridia are the excretory organs of:

Which one the following characters are unique to Cnidaria?

Evolution of Porifera from protozoa is evidenced by animals like:

Which of the following is not correct regarding the matching of phylum and its examples?

Which of the following is a connecting link between fishes and amphibians?

Assertion: Marsupials exhibit aplacental viviparity. Reason: Young ones of marsupials are carried to the womb for further development.

ssertion: Hemichordates were earlier considered as chordates. Reason: Hemichordates have notochord persistent throughout their life.

Assertion: Some cephalopods can show learned behaviour. Reason: They have closed circulatory system and vertebrate type eyes.

Identify the set containing larval forms of a phylum:

Find the character shared by Cnidaria and Ctenophora.

Select the incorrect pair:

All the following are the features of animals with pseudosegmentation, except the feature:

Match the following:

a. Collar cells	Storage of food
b. Thesocytes	External covering
c. Sceleroblasts	Intracellular digestion
d. Pinacocytes	Totipotent cells
e. Archaeocytes	Spicules formation.

Identify the group containing economically important molluscs only:

Select the secondarily radially symmetrical animal.

The absence of circulatory system in nematodes is compensated by the presence of:

Which of the following is not an advantage of coelomates over pseudocoelomates?

Bilaterally symmetrical animals can sense the new environment into which they enter and can respond more effectively and quickly. This is due to:

Find the fish which was thought to be extinct until 1938, but later found to be living in small numbers.

Select true statement: All mammals have seven cervical vertebrae. Renal portal system is absent in cyclostomes. All reptiles have 12 pairs of cranial nerves. All diploblastic animals are radially or biradially symmetrical. All birds except new world vultures have synrix.

Match the following:

Column A	Column B
a. Belly creepers	Herdmania
b. The master of air	Didelphis
c. Evolutionary blind offshoot	Struthio
d. Mammary foetus	Euplectella
e. Non-vertebrate chordate	Alligator

If one of the following changes was made in the amphibian body, they could have cut the relation with aquatic life. Select the change:

Which of the following is the remnant of notochord found in some adult chordates?

The ‘First key transition’ in the evolution of animal body structure is:

Five features and names of 5 animals are given below. From these identify the properly matched ones:

Features	Animals
a. Water canal system and Spicules	Pheretima
b. Endocrine system and Chitinous exoskeleton	Dentalium
c. Ambulacral system and tube feet	Euplectella
d. Closed circulation and nephridia	Apis mellifera
e. Sensory tentacles and feather like gills	Asterias

From the following characteristics, identify the organism: (i) Animal with bilateral symmetry, Triploblasty and shizocoelom. (ii) It possesses paired nerve ganglia and double ventral nerve chord. (iii) Monoecious and direct development. (iv) Dermomuscular body wall and closed circulation.

Maximum life span of 507 years is found in Ocean Quahog. Minimum life span of 1 – 2 weeks is found in:

Pentamerous radial symmetry, dorsal/upper anus and deuterostomous condition are the characteristics of: