Animal Kingdom Chapter-Wise Test 12

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which feature is shared by both annelids and arthropods?

Open circulatory system
Chitinous exoskeleton
Metameric segmentation
Pseudocoelom
3

Both annelids and arthropods exhibit metameric segmentation, where the body is divided into repetitive segments.

Which characteristic is unique to birds among vertebrates?

Four-chambered heart
Oviparity
Presence of feathers
Endothermy
3

Birds are the only vertebrates that possess feathers, which help in flight and insulation.

Which of the following features is found in both birds and reptiles?

Four-chambered heart in all members
Scales on the body
External ears
Excretion of urea
2

Both birds and reptiles have scales on their body, indicating their evolutionary connection.

Which of the following statements about echinoderm reproduction is correct?

They reproduce asexually through fragmentation
They have separate sexes with external fertilization
They are hermaphrodites
They give birth to live young
2

Echinoderms have separate sexes, and fertilization occurs externally in water.

Which of the following is an example of an annelid?

Pheretima
Limulus
Taenia
Asterias
1

Pheretima (earthworm) is a segmented worm belonging to phylum Annelida.

Which of the following statements about birds is correct?

They have a three-chambered heart
They are poikilothermic (cold-blooded)
They have pneumatic bones
They excrete urea as nitrogenous waste
3

Birds have pneumatic (hollow) bones, which reduce body weight and aid in flight.

Which of the following characteristics is found in all chordates?

Vertebral column
Paired fins
Dorsal hollow nerve cord
Open circulatory system
3

All chordates possess a dorsal hollow nerve cord at some stage in their life cycle.

Which of the following statements about reptiles is correct?

They have a four-chambered heart in all members
They excrete urea as their primary nitrogenous waste
They lay amniotic eggs with a leathery shell
They have a moist, glandular skin
3

Reptiles lay amniotic eggs with a leathery shell, which provides protection against desiccation.

Which of the following adaptations is found in parasitic platyhelminthes?

Presence of a complex nervous system
Absence of a digestive system in some forms
Possession of jointed appendages
Open circulatory system
2

Parasitic platyhelminths (e.g., tapeworms) lack a digestive system and absorb nutrients directly from the host through their body surface.

Which of the following is a distinguishing feature of cyclostomes?

Jaws
Paired fins
Circular, jawless mouth
Scales on body
3

Cyclostomes, such as lampreys and hagfish, lack jaws and have a circular, sucking mouth.

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