Question 9
Choose the set that represents only the biotic components of a habitat.
(a) Tiger, deer, grass, soil
(b) Rocks, soil, plants, air
(c) Sand, turtle, crab, rocks
(d) Aquatic plant, fish, frog, insect
Option (d).
Living things such as plants, animals, and microorganisms in a habitat are known as its biotic components. Non-living things such as rocks, soil, air, and water in a habitat constitute its abiotic components. Among the given options, option (d) consists of only living things such as aquatic plants, fish, frog, and insect which are biotic components. At the same time, options (a), (b) and (c) consists of abiotic components like soil, rocks, air, sand, etc.