Review Quiz 8th grade

What are the six kingdoms of the classification system?

• a) Animals, Plants, Fungi, Protists, Bacteria, Archaea

• b) Animals, Plants, Bacteria, Archaea, Fungi, Viruses

• c) Animals, Plants, Fungi, Bacteria, Archaea, Protists

• d) Animals, Plants, Fungi, Viruses, Protists, Algae

What is a trophic level?

• a) The energy source in an ecosystem

• b) The position an organism occupies in a food chain or web

• c) The number of different species in a biome

• d) The amount of sunlight in a habitat

Which of the following is a characteristic of a drought?

• a) A period of extreme rainfall

• b) A long period with little or no rainfall

• c) A season of high temperatures

• d) A time when animals migrate

Which of the following describes a seasonally dry tropical forest biome?

• a) A forest where it is always rainy

• b) A forest that has dry periods followed by heavy rains

• c) A forest that has cold temperatures throughout the year

• d) A forest found only in temperate regions

What is a food chain?

• a) A system that shows the flow of energy through different organisms in an ecosystem

• b) A diagram showing how different plants grow

• c) A map of the ecosystem's weather patterns

• d) A food source for animals only

What is a mixotroph?

• a) An organism that can be both a producer and a consumer

• b) An organism that can only consume food

• c) An organism that only photosynthesizes

• d) An organism that only eats other consumers

What does a food web represent?

• a) A series of interconnected food chains in an ecosystem

• b) The physical structure of an ecosystem

• c) A single, linear flow of energy

• d) The path of nutrients through the soil

What is chemosynthesis?

• a) The process of making food using sunlight

• b) The process of using chemical reactions to produce food

• c) The method by which plants absorb carbon dioxide

• d) The process by which plants make oxygen

What is photosynthesis?

• a) The process of producing food from sunlight and carbon dioxide

• b) The process of producing food from soil nutrients

• c) The process of breaking down food for energy

• d) The process of making chemicals for photosynthesis

What are saprotrophic bacteria?

• a) Bacteria that produce food through sunlight

• b) Bacteria that feed on dead and decaying organic matter

• c) Bacteria that live in extreme environments

• d) Bacteria that create their own food through chemosynthesis