Practice Populations (11.1) - ORGANISMS AND POPULATIONS - CBSE 12 Biology

Practice: Populations

Lesson 11.1ORGANISMS AND POPULATIONS

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9 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define a population in ecological terms.
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Think about how populations differ from individuals.
Question 2.
What is meant by population density?
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Consider how crowded a space is.
3Question 3.
Which of the following best defines a population?
- A group of individuals of different species.
- A group of individuals of the same species living in a defined area.
- A collection of organisms without specific requirements.
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Consider what it means to be part of the same species.
4Question 4.
True or False: Logistic growth continues indefinitely without limits.
- True
- False
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Think about what impacts growth sustainability.
Question 5.
Given that a population has a birth rate of 0.1 and a death rate of 0.05, calculate the intrinsic rate of natural increase (r). What implications does this have for the population size?
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Remember that r shows the potential for population increase.
Question 6.
Explain how interspecific competition might affect two bird species that share the same nesting site. Use the Competitive Exclusion Principle to support your explanation.
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Think about how limited resources force species to adapt or face decline.

5 more questions in this section. Enroll free to practise them all.