1. What does the statement 'How wonderful is the living world! The wide range of living types is amazing' mainly highlight?
Correct Answer: B
The statement highlights the great diversity present in the living world. There are countless types of organisms such as plants, animals, fungi, bacteria, and microscopic life forms. These organisms differ in size, shape, structure, and habitat. This wide variety of life forms makes the living world fascinating and amazing.
2. Living organisms can be found in extraordinary habitats such as:
Correct Answer: B
Living organisms exist in a wide range of habitats on Earth. They can live in extremely cold mountains, dense forests, oceans, fresh water lakes, dry deserts, and even very hot springs. This shows the remarkable adaptability and diversity of life forms in different environmental conditions.
3. Examples like a galloping horse, migrating birds, valley of flowers, and an attacking shark mainly show:
Correct Answer: B
The examples of a galloping horse, migrating birds, the valley of flowers, and an attacking shark highlight the beauty, power, and diversity of life in nature. Such scenes create feelings of awe and wonder in humans. They show how fascinating and magnificent the living world is.
4. Ecological conflict and cooperation occur among:
Correct Answer: A
In nature, organisms interact with each other in many ways. Members of the same population may compete for food, space, or mates, which leads to ecological conflict. At the same time, organisms may also cooperate with each other for survival, such as in symbiotic relationships. These interactions occur both within a population and among different populations in a community.
5. The phrase 'molecular traffic inside a cell' mainly refers to:
Correct Answer: B
Inside every living cell, thousands of molecules such as proteins, enzymes, and ions constantly move and interact with each other. These movements help carry out important life processes like metabolism, transport of materials, and cell communication. This continuous movement is often described as 'molecular traffic inside a cell'.
6. In biology, the question 'What is life?' mainly attempts to understand:
Correct Answer: B
The question 'What is life?' contains two aspects. One is philosophical, which asks about the purpose of life, and the other is scientific or technical, which tries to distinguish living organisms from non-living matter. In biology, scientists mainly focus on the technical aspect and study the characteristics that differentiate living things from non-living objects.