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Consider the following statements:
1. All organisms except viruses are dependent on the other organism and environment for food, energy, water, oxygen, shelter etc.
2. The environment is static but the relationship and interaction between organism and environment are highly complex.
Which of these statements is/are correct?
Which of the following are the biotic components of the environment?
1. Wind
2. Parasites
3. Symbionts
4. Decomposers
Choose from the following options.
Consider the following statements:
1. Population is a group of organisms occupying a defined area during a specific time.
2. Population growth rate is the percentage variation between the number of individuals in a population at two different places.
3. The main factors that make the population decrease are death and emigration.
Which of these statements is/are correct?
Consider the following statements about the major community:
1. They are dependent on neighbouring communities.
2. They depend only on the Sun's energy from outside.
Which of these statements is/are correct?
Consider the following statements about the Structure of a community:
1. A community may have one or several species.
2. The environmental factors determine the characteristic of the community.
Which of these statements is/are correct?
Consider the following statements:
1. Latitude has a strong influence on an area’s temperature.
2. As the altitude increases, the air becomes colder and drier.
Which of these statements are not correct?
Consider the following statements:
1. Secondary consumers feed on primary consumers.
2. Carnivores which feed on secondary consumers are called omnivorous.
Which of these statements is/are correct?
Consider the following statements:
1. A niche is the unique functional role or place of a species in an ecosystem.
2. Two or more species have identical niches.
3. Reproductive niche is where the organism decomposes.
Which of these statements is/are correct?
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522 videos|968 docs|446 tests
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