CBSE
Multiple Choice QuestionsAssertion : The duck-billed Platypus and the spiny ant-eater, both are egg-laying animals yet they are grouped under mammals.
Reason : Both of them have seven cervical vertebrae and 12 pairs of cranial nerves.
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
If both Assertion and Reason are true but the Reason is not the correct explanation of the assertion
If Assertion is true but Reason is false
If both Assertion and Reason are false
True coelom appeared first in the course of evolution in
Aschelminthes
Chordata
Echinodermata
Annelida
Tube-within-a-tube body plan is shown by
coelenterates
platyhelminthes
aschelminthes (nemathelminthes)
porifers
Which one feature is common to leech, cockroach and scorpion
Nephridia
Cephalisation
Ventral nerve cord
Antenna
Which artery is absent in frog
Right systemic arch
Phrenic artery
Carotid artery
Renal artery
Blind sac body plan is shown by
roundworms
annelids
coelenterates
arthropods
Which of the following is not the example of marine fishes ?
Labeo
Mugil
Hilsa
Sardines
Which of the following is not found in vertebrates
Bilateral symmetry
Gill opening
Body scales
Cnidoblasts
Which of the following is a viral disease in silkworm ?
Flacherie
Grasserie
Muscardine
Pebrine
Shifting of ammonotelism to ureotelism is seen in
fishes
protopterus
frog
snake
