Ecosystems

Which is the largest ecosystem on earth?

• Ocean

• Desert

• Arctic

• Forest

The place where an organism lives that provides it with shelter, food and water.

• ecosystem
• population
• community
• habitat

The role of plants in a food web is 

• consumer
• decomposer
• predator
• producer

Choose the complete and logical food chain.

• sun-plant-rabbit- eagle
• deer - squirrel- plant-sun
• sun -deer-plant- eagle
• eagle- squirrel-rabbit- plant- eagle

How do animals depend on plant for survival?

• Animals help spread seeds of plants for new growth
• Animals are producers in a food web
• Plants and animals need sunlight to survive
• Animals eat plants and other animals that eat plants for food

This is a change in the body to fit a location (environment).

• Characteristic
• Nothing
• Adaptation
• Mutation

Adaptations are necessary for animals to survive and reproduce.

• True
• False

Biodiversity refers to

• extinct species
• the variety of species on Earth
• nonrenewable resources
• the rate of species decline

When taken to a new habitat, non-native plants often threaten native plants of the new habitat.  Why do they do this?

• Non-native plants are able to mutate rapidly
• Non-native  plants cause native animals to relocate
• Non-native plants are able to be used for medicine
• Non-native plants compete with native plants for resources

Tags

CCSS.RI.4.3

CCSS.RI.5.3

CCSS.RI.6.3

CCSS.RI.7.3

CCSS.RI.8.3

1. What makes a species invasive?

• Moving to a new ecosystem and taking resources from natives 
• Not having papers
• Species that can't adapt
• Plants that take up too much space