Biology is the study of all living things and how they live, grow and function. For example, when we learn how plants prepare food using sunlight, how humans digest food, or how birds lay eggs, we are studying biology. It explains life and living processes around us.
2. The living world comprises:
Correct Answer: C
The living world includes many different kinds of living organisms. For example, tall trees, small grass, birds, insects, fish, humans and even tiny bacteria are all part of the living world. They look different, live in different places and perform different activities.
3. Early man could easily perceive the difference between:
Correct Answer: B
Early humans could clearly see the difference between living and non-living things. For example, animals could move, eat and breathe, but stones and water could not do these things. A plant grows slowly, but a rock never grows. This helped them understand life.
4. Early man deified some inanimate matter such as:
Correct Answer: B
Early humans worshipped natural forces like wind, sea and fire because they were powerful and sometimes dangerous. For example, fire could cook food but also burn homes. Stormy winds and huge sea waves frightened people, so they respected and treated them as gods.
5. A common feature of animate and inanimate objects that evoked feelings in early man was:
Correct Answer: C
Both living and non-living things created feelings of fear or wonder in early humans. For example, a roaring lion (living) or a lightning storm (non-living) could make people afraid. Huge mountains or big animals also created a feeling of respect and amazement.
6. Systematic description of life forms led to the development of:
Correct Answer: C
When people began studying living things carefully, they needed proper ways to identify and name them. For example, giving a mango tree a scientific name and grouping similar animals together. This led to systems of identification, naming (nomenclature) and classification.
7. Recognition of similarities among organisms showed that:
Correct Answer: B
Scientists found that living organisms share similarities. For example, humans and monkeys have similar bones because they share ancestors (vertical relationship). Birds living today have wings and feathers (horizontal similarity). This shows that all living things are connected.
8. The idea that all present-day organisms are related led to:
Correct Answer: B
When humans understood that all living things are related and share common ancestors, they became more responsible toward nature. For example, creating wildlife sanctuaries, protecting forests and saving endangered animals like tigers are efforts to conserve biodiversity.
9. The study of classification of animals and plants is done from a:
Correct Answer: C
A taxonomist is a scientist who studies classification of living organisms. For example, grouping dogs and cats as mammals or grouping rose and sunflower as flowering plants. This helps in organizing and understanding the huge variety of living organisms.