HS-LS2-1

Which of the following is NOT a biotic factor in an ecosystem?

• Algae

• Bacteria

• Soil type

• Deer

What role do primary consumers play in an ecosystem?

• They break down dead organic matter

• They feed directly on producers

• They synthesize their own food

• They consume secondary consumers

Which component is considered a part of the ecosystem's chemical environment?

• Geography

• Nutrient Availability

• Climate

• Sunlight

What is the primary source of energy for photosynthesis in ecosystems?

• Precipitation

• Soil nutrients

• Sunlight

• Temperature

Which of the following organisms are considered decomposers?

• Grasshoppers

• Wolves

• Fungi

• Hawks

What is the primary source of energy for most ecosystems?

• Wind

• Sunlight

• Thermal energy

• Water

Which of the following best describes a food chain?

• A complex system showing multiple interconnected food chains

• A system that only includes plants and animals

• A linear sequence that shows the transfer of energy from one organism to another

• A cyclic process where energy returns to the initial organism

What type of relationship is parasitism?

• A relationship where both organisms benefit

• A relationship where one organism benefits at the expense of another

• A relationship where neither organism benefits

• A relationship where one organism benefits and the other is unaffected

Which trophic level is directly below secondary consumers in the food chain?

• Tertiary consumers

• Primary consumers

• Producers

• Decomposers

How is energy transferred in an ecosystem?

• Only through consumption of plants

• Between trophic levels as organisms are consumed

• Via water cycles

• Through sunlight only