The gap between two neurons where nerve impulse transmission occurs is called: MCQ with Answer and Explanation

Explanation:
Xylem is a complex permanent tissue that conducts water and dissolved minerals from roots to the aerial parts. It consists of tracheids, vessels, xylem parenchyma, and fibers. Phloem transports organic solutes, collenchyma provides flexible support, epidermis protects.

Explanation:
Cardiac muscle is striated, branched, and involuntary, with intercalated discs containing gap junctions for synchronized contraction. It is unique to the heart wall. Smooth muscle is non-striated and involuntary in visceral organs, skeletal muscle is striated and voluntary. Cardiac muscle exhibits autorhythmicity.

Explanation:
Chitin is a polymer of N-acetylglucosamine, forming the tough exoskeleton of arthropods and the cell wall of fungi. Cellulose is a plant polysaccharide, starch and glycogen are energy storage polysaccharides in plants and animals respectively. Chitin provides protection and support.