Layers of the Ecosystem Flashcards
What is an ecosystem?
An ecosystem is a community of living organisms interacting with their physical environment.
What are biotic factors?
Biotic factors are the living components of an ecosystem, such as plants, animals, and microorganisms.
What are abiotic factors?
Abiotic factors are the non-living physical and chemical components of an ecosystem, such as sunlight, water, and soil.
True or False: A population consists of all the organisms of the same species living in a specific area.
True
Fill in the blank: The _______ is a group of different populations living together in a defined area.
community
What is the primary producer in an ecosystem?
The primary producer is typically plants or autotrophs that convert solar energy into chemical energy through photosynthesis.
Multiple Choice: Which of the following is NOT an abiotic factor? A) Temperature B) Soil C) Trees D) Water
C) Trees
What role do decomposers play in an ecosystem?
Decomposers break down dead organic matter, returning nutrients to the soil.
Fill in the blank: The _______ layer of an ecosystem consists of all the living organisms.
biotic
What is the difference between a community and a population?
A community is made up of multiple populations of different species, while a population consists of individuals of the same species.
Multiple Choice: Which of the following is an example of a biotic factor? A) Sunlight B) Water C) Bacteria D) Temperature
C) Bacteria
What is ecological succession?
Ecological succession is the process by which ecosystems change and develop over time.
True or False: Predators are considered biotic factors in an ecosystem.
True
Fill in the blank: _______ factors can influence the distribution and abundance of organisms in an ecosystem.
Abiotic
What defines a niche in an ecosystem?
A niche is the role or function of an organism within its environment, including its habitat, resource use, and interactions with other organisms.
What is the relationship between abiotic factors and biotic factors?
Abiotic factors influence the living organisms (biotic factors) by affecting their survival, growth, and reproduction.
True or False: Secondary consumers are organisms that primarily eat primary consumers.
True
What is a food web?
A food web is a complex network of feeding relationships among organisms in an ecosystem.
What is the significance of biodiversity in an ecosystem?
Biodiversity enhances ecosystem resilience, productivity, and stability.
Multiple Choice: Which of the following is a characteristic of a healthy ecosystem? A) Low biodiversity B) High stability C) High pollution D) High extinction rates
B) High stability
What is the term for the maximum population size that an environment can sustain?
Carrying capacity
True or False: All ecosystems are closed systems.
False
