Ecology - Organisms & Populations

⏱ Time: 0s

Q1. Which of the following best describes a population? (2020)

Solution:

A population is defined as all individuals of a particular species that live in a specific area.

⏱ Time: 0s

Q2. In a predator-prey relationship, what is the primary effect of an increase in the prey population? (2021)

Solution:

An increase in the prey population typically leads to an increase in the predator population due to more available food.

⏱ Time: 0s

Q3. Which of the following terms describes the maximum population size that an environment can sustain? (2018)

Solution:

Carrying capacity is the maximum number of individuals of a species that an environment can support sustainably.

⏱ Time: 0s

Q4. In which type of population distribution do individuals have a uniform distance between them? (2019)

Solution:

Uniform distribution occurs when individuals are evenly spaced, often due to competition for resources.

⏱ Time: 0s

Q5. What type of interaction occurs when one organism benefits while the other is harmed? (2021)

Solution:

Parasitism is a type of interaction where one organism benefits at the expense of another.

⏱ Time: 0s

Q6. What is the primary factor that determines the distribution of organisms in an ecosystem? (2020)

Solution:

Climate is the primary factor influencing the distribution of organisms, as it affects temperature, precipitation, and seasonal changes.

⏱ Time: 0s

Q7. Which of the following is an example of a biotic factor in an ecosystem? (2022)

Solution:

Plants are a biotic factor as they are living organisms that interact with other organisms in the ecosystem.

⏱ Time: 0s

Q8. What is the term for the gradual change in species composition in a given area over time? (2023)

Solution:

Succession refers to the process of change in the species structure of an ecological community over time.

⏱ Time: 0s

Q9. What term describes the role of an organism in its environment? (2019)

Solution:

The niche of an organism refers to its role and position in its environment, including all interactions with biotic and abiotic factors.

⏱ Time: 0s

Q10. Which of the following is an example of a density-dependent factor affecting population growth? (2021)

Solution:

Density-dependent factors, such as disease, have a greater effect as the population density increases.