Question 11 Mark
Identify 'A' in the given graph of population growth.
Answer
View full question & answer→‘A’ - Stationary phase
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Question 21 Mark
From the given diagram, identify the type of population growth curve:
Answer
View full question & answer→coming soon…
Question 31 Mark
Define commensalism.
Answer
View full question & answer→Commensalism is the interaction in which one species benefits and the other is neither harmed nor benefited.
Question 41 Mark
Which are the major abiotic factors that influence habitat?
Answer
View full question & answer→The key abiotic components that influence the habitat are temperature, water, light, and soil.
Temperature: This is an ecologically significant characteristic that limits the dispersion of species. Temperature has an impact on enzyme kinetics and the overall metabolism of organisms.
Water: Water is essential for plant production and dissemination. Water's chemical composition and pH are essential elements for aquatic creatures.
Light: Light is required for photosynthesis in plants. All living organisms get their energy from light.
Soil: The vegetation of a region is determined by the characteristics of the soil. Animal species are also influenced by vegetation.
Temperature: This is an ecologically significant characteristic that limits the dispersion of species. Temperature has an impact on enzyme kinetics and the overall metabolism of organisms.
Water: Water is essential for plant production and dissemination. Water's chemical composition and pH are essential elements for aquatic creatures.
Light: Light is required for photosynthesis in plants. All living organisms get their energy from light.
Soil: The vegetation of a region is determined by the characteristics of the soil. Animal species are also influenced by vegetation.
Question 51 Mark
State the formula to calculate natality.
Answer
View full question & answer→Natality is also known as birth rate. It is the rate of production of new individuals per unit of population per unit time through birth, hatching, germination or vegetative propagation. Natality (birth rate) is calculated as a number of births in a year per thousand individuals.
Natality \(=\frac{\text { Number of birth }}{\text { Total number of individuals in a population }} \times 1000\)
Natality \(=\frac{\text { Number of birth }}{\text { Total number of individuals in a population }} \times 1000\)