Question

Read the following terms given below. (Root hairs xylem urethra arteries kidneys veins atria capillaries heart ureter phloem urinary bladder) Group the terms based on the categories given below. (a) The circulatory system of animals. (b) Excretory system in humans. (c) Transport of substances in plants.

Answer 1

a) Circulatory system:

1. Arteries, atria, capillaries, veins, and heart together form the circulatory system.
2. The human circulatory system consists of the heart, a network of blood vessels that transport oxygenated and deoxygenated blood through the human body.

b) Excretory system:

1. The male excretory system includes the urethra, kidneys, ureters, and bladder.
2. In men, the excretory system of a pair of ureters, a pair of kidneys, a urethra, and a bladder.
3. Waste products such as urea and carbon dioxide from the blood and urine are removed by the kidneys.

c) Transport in plants:

1. Transport of substances in plants includes xylem, phloem, and roots.
2. Plants absorb water and minerals from the soil through their roots and transport them to other parts.
3. Xylem transports water and minerals while phloem transports food into the plant from the leaves.