Ecosystem Interactions and Competition

What are biotic factors?

• Nonliving parts of an organism's habitat

• Living or once-living parts of an organism's habitat

• Only plants in an ecosystem

• Only animals in an ecosystem

Which of the following is an example of a biotic factor?

• Water

• Sunlight

• Plants

• Air

What do abiotic factors include?

• Only living organisms

• Water, space, air, soil, and sunlight

• Only plants and animals

• Only decomposers

What is the role of biotic factors in an ecosystem?

• They provide only sunlight

• They are living or once-living parts of a habitat

• They are nonliving parts of a habitat

• They provide only water

How do abiotic factors affect organisms?

• They provide food

• They provide nonliving elements like water and air

• They provide only shelter

• They provide only living elements

What is the main theme of the text?

• Migration of animals

• Competition among organisms for survival

• Evolution of species

• Food chain dynamics

Why might tomato plants compete within their population?

• For sunlight and water

• For pollinators

• For predators

• For temperature

What is the primary food resource for bald eagles in the image?

• Insects

• Fish

• Small mammals

• Seeds

Which of the following is NOT included in an organism's niche?

• How it obtains food

• Its predators

• The color of its fur

• Environmental conditions needed to survive

What is one reason ocelot populations have become endangered in South Texas?

• Lack of food

• Competition with bobcats

• Climate change

• Habitat destruction