Classes of Animals MCQs with Answers

The major organ involved in fish osmoregulation is _?

• A.Kidney
• B.Gill
• C.Liver
• D.Skin

A major difference between marine and freshwater animals lies in ?

• A.Mode of reproduction
• B.Body temperature regulation
• C.Respiratory mechanism
• D.Toxicity of body fluids

The most well-known genus of Onychophorans is ?

• A.Peripatus
• B.Planaria
• C.Ascaris
• D.Hydra

Trout fishes belong to taxonomic family.

• A.Salmonidae
• B.Cyprinidae
• C.Scombridae
• D.Clupeidae

Trout is living/cultured in _?

• A.Polluted water
• B.Warm water
• C.Salt water
• D.Cold water

What is a creature called that possesses both male and female reproductive organs?

• A.Bisexual
• B.Hermaphrodite
• C.Unisexual
• D.Asexual

The female of silk moth have life span of _?

• A.10-15 days
• B.5-7 days
• C.2-3 days
• D.1-2 months

Each kingdom is divided into smaller groups ?

• A.Phylum
• B.Class
• C.Both A and B
• D.Species

The gastropod larval stage in which torsion occurs is called ?

• A.Trochophore
• B.Planula
• C.Veliger
• D.Glochidium

What is the biological name of cat?

• A.Equus ferus
• B.Canis lupus
• C.Panthera leo
• D.Felis catus