
- APotential energy
- BTransition state
- ✓Activation energy without enzyme
- DActivation energy with enzyme

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$A$. Presence of a mid-dorsal, solid and double nerve cord.
$B$. Presence of closed circulatory system.
$C$. Presence of paired pharyngeal gill slits.
$D$. Presence of dorsal heart
$E$. Triploblastic pseudocoelomate animals.
Choose the correct answer from the options given below:
$A$. Gap $2$ phase $B$. Cytokinesis
$C$. Synthesis phase $D$. Karyokinesis
$E$. Gap $1$ phase
Choose the correct sequence of stages from the options given below :

$(i)$ Transport and chemically modify the materials contained within it.
$(ii)$ Performs the function of packaging materials.
$(iii)$ Important site of formation of glycoproteins and glycolipids.
Which of the following is the correct answer?