Correct Option
The correct option is (c) 1 and 3 only.
Explanation
Animals are heterotrophs, meaning they cannot synthesize their own food and depend on other organisms for nutrition. Based on their dietary habits and the source of food, animals are broadly classified into three primary categories: herbivores, carnivores, and omnivores.
Statement-wise Analysis
- Statement 1 is Correct: Herbivores are animals that derive their nutrition exclusively from plants or plant products such as leaves, fruits, seeds, and nectar. Examples include cows, deer, and elephants. Their digestive systems are often specialized to digest cellulose found in plant matter.
- Statement 2 is Incorrect: Carnivores are animals that feed exclusively on the flesh of other animals. They do not consume plant matter as a primary food source. Examples include lions, tigers, and eagles. The statement incorrectly defines carnivores as feeding on plant matter.
- Statement 3 is Correct: Omnivores are animals that have a mixed diet, consuming both plant matter and other animals. Their physiological structure allows them to process different types of food. Examples include humans, bears, and crows.
Key Takeaway
Herbivores eat only plants; Carnivores eat only flesh/meat; and Omnivores consume both plants and animals.