The waxy layer that covers the outer surface of leaves to reduce water loss is the: MCQ with Answer and Explanation

Explanation:
A neuron consists of a cell body (soma), dendrites, and an axon. Dendrites are short, branched processes that receive impulses and conduct them towards the cell body. The axon is a long, single, cylindrical fiber that conducts nerve impulses away from the cell body to other neurons, muscles, or glands. The myelin sheath is an insulating layer around the axon.

Explanation:
The liver is the largest internal organ and gland, weighing about 1.5 kg in an adult. It performs over 500 functions, including bile production, detoxification, metabolism of carbohydrates, lipids, and proteins, and synthesis of plasma proteins. The pancreas and thyroid are smaller glands, the spleen is not a gland.

Explanation:
The lymphatic system drains excess tissue fluid (lymph) back to the venous blood. Blood circulation is the cardiovascular system; lymph nodes filter lymph; thymus is a primary lymphoid organ.