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Answer:
<em>The correct characteristics are - tissue, coelom, segmentation, endoskeleton, and backbone from top to bottom boxes.
</em>
Explanation:
Elements are pure substances made up of atoms
Answer:
<u>Pruning</u>
Explanation:
Pruning or synaptic pruning is brain's way of clearing unnecessary signals that are no longer needed. It mostly occur in childhood and adolescence because brain want to get faster by avoiding unused impulses in Synapses. Synapse is the space between neurons through which signals are being transferred.