MCQ
Which function is served by the tracheal system in insects?
- ASensation
- ✓Respiration
- CBoth $(a)$ and $(b)$
- DDigestion
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$I.$ $A$ might be before $B$ and $C$
$II.$ $B$ might be between $A$ and $C$
$III.$ $C$ might be between $A$ and $B$
$IV.$ More crosses has occurred between $A$ and $C$ than $A$ and $B$
Reason : Transplanted tissue has antigens which stimulate the specific immune response of the recipient.
$(I)$. pre and postsynaptic neurons are in very close proximity
$(II)$. pre and postsynaptic neurons are separated by synaptic cleft
$(III)$. impulse transmission is very fast
$(IV)$. electrical synapses are common in our system
Select the correct option