MCQ
Which of the following is absent in monocot stem?
- ✓Pith
- BCortex
- CHypodermis
- DEpidermis
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$I.$ Pre and postsynaptic membrane neurons are in very close proximity at electric synapse
$II.$ Electric current are involved in the transmission of impulses
$III.$ Transmission of an impulse across electrical synapses is very similar to impulse conduction along a single axon
$IV.$ Impulse transmission is always faster in electric synapse than that across a chemical synapse
$V.$ Electrical synapses are rare in our system
The correct option is
$I$. Chordata $II$. Annelida
$III$. Arthropoda $IV$. Platyhelminthes
$V$. Ctenophora $VI$. Aschelminthes