NEET BIOLOGY

Detailed explanation-1: -If a kestrel eats a mouse that eats grass, the kestrel is a second-level consumer. An organism that can make its own food is called a producer. The best way to represent a large, complex system, such as the water cycle, would be a computer model.

Detailed explanation-2: -Regions of similar climate and dominant plant types are called biomes. This chapter describes some of the major terrestrial biomes in the world; tropical forests, savannas, deserts, temperate grasslands, temperate deciduous forests, Mediterranean scrub, coniferous forests, and tundra (Figure 4).

Detailed explanation-3: -Decomposers break down dead organisms like plants and animals. Explain the role of an animal such as the horse in the nitrogen cycle. Animals, such as the horse, die for the decomposers to break down and return to the air or soil.

Detailed explanation-4: -Autotroph. an organism that produces its own nutrients from inorganic substances or from the environment instead of consuming other organisms. Heterotroph. an organism that obtains organic food molecules by eating other organisms or their byproducts and that cannot synthesize organic compounds from inorganic material.