Resources and Populations

What is the significance of biodiversity in an ecosystem?

• Biodiversity helps ecosystems remain resilient and adaptable to changes.

• Biodiversity decreases competition among species.

• Biodiversity leads to the extinction of weaker species.

• Biodiversity has no impact on ecosystem health.

What is the role of producers in an ecosystem?

• Producers create energy through photosynthesis and provide food for consumers.

• Producers consume energy from consumers to grow.

• Producers decompose organic matter to enrich the soil.

• Producers regulate the population of consumers in an ecosystem.

What is a population?

• A group of individuals of the same species living in a specific area.

• A collection of different species in a habitat.

• The total number of organisms in an ecosystem.

• A random sample of individuals from a larger group.

What is carrying capacity?

• The maximum number of individuals of a species that an environment can support.

• The total biomass of all species in an ecosystem.

• The average lifespan of a species in a given habitat.

• The rate at which a species reproduces in a year.

What happens when more individuals are born than die in a population?

• The population size increases.

• The population size decreases.

• The population remains stable.

• The population migrates to other areas.

What happens to a population if its main food source decreases?

• The population may decrease due to lack of resources.

• The population will remain stable regardless of food availability.

• The population will increase as they adapt to new food sources.

• The population will migrate to find more food sources.

What is the relationship between predators and prey?

• Predators and prey have no interaction.

• Predators hunt and eat prey, which can affect the population sizes of both.

• Prey hunt and eat predators to survive.

• Predators and prey live in harmony without affecting each other.

What is an ecosystem?

• A place where only living organisms exist.

• A community of living and nonliving things that interact with each other.

• A type of climate zone with specific weather patterns.

• An area that is completely isolated from all other environments.

What is a food web?

• A simple linear sequence of organisms that eat each other.

• A complex network of interconnected food chains in an ecosystem.

• A diagram that shows the energy flow in a single food chain.

• A type of food chain that only includes herbivores.

How do predators affect prey populations?

• Predators can increase prey populations by providing food.

• Predators can decrease prey populations by consuming them.

• Predators have no effect on prey populations.

• Predators can help prey populations grow by eliminating competition.