Ecology and Ecosystems Quiz

What happens to the ecosystem if the mouse population decreases?

• Plant population decreases

• Predators have less food

• Predators have more food

• Soil quality improves

What is the term for the place where an organism lives?

• Community

• Ecosystem

• Habitat

• Population

Which of the following is a biotic factor?

• Water

• Soil pH

• Temperature

• Availability of food

What do plants compete for in an ecosystem?

• Light and mineral ions

• Mates

• Predators

• Territory

Which of the following is an example of competition between different species?

• Plants competing for sunlight

• Mice competing for food

• Lions and hyenas competing for a wildebeest

• Male deer competing for females

What is interdependence in an ecosystem?

• The competition between species for resources

• The isolation of species from each other

• The reliance of species on non-living factors

• The dependence of species on each other

What might happen if the mouse population suddenly increases?

• Rabbit population increases

• Hawk population decreases

• Grasshopper population decreases

• Grass availability increases

What is a food web?

• A network showing the competition between species

• A chart of abiotic factors in an ecosystem

• A diagram showing the feeding relationships within a community

• A list of all species in a habitat

What is the main focus of ecology?

• Analyzing abiotic factors

• Understanding ecosystems and their changes

• Observing predator-prey relationships

• Studying individual species

Where can you find additional resources for studying ecology?

• In the library

• In a textbook

• On social media

• On cognito.org