Living Systems Quiz

What is a system?

• A single part

• A group of parts that don't depend on each other

• 2 or more parts that interact with each other to form a whole

Which of the following is an example of a system?

• The human body

• a pile of rubber bands

• A single rock

Is the Earth a system?

• No, it is too big to be a system

• Yes, it is a system because it has interacting parts

• Yes, it is a system because it is made of rocks

• No, it is just a large object

What is the biosphere?

• The community of organisms interacting with each other and with the nonliving environment

• All water found on, under, and over the surface of Earth

• The solid Earth

• The layer of gases surrounding Earth

What do producers do in an ecosystem?

• They eat other organisms

• They cannot make their own food

• They make their own food from sunlight, water, minerals, and carbon dioxide

• They break down plant and animal material

What is a food chain?

• A system of interconnected food chains

• A description of the feeding relationships between organisms in an environment --> linear (in a single line)

• An organism that breaks down plant and animal material into simple chemicals

What do decomposers do in an ecosystem?

• They break down plant and animal material into simple chemicals

• They make their own food from sunlight, water, minerals, and carbon dioxide

• They eat other organisms

What is a food web?

• An organism that breaks down plant and animal material into simple chemicals

• A system of interconnected food chains

• A description of the feeding relationships between organisms in an environment

How can humans affect an ecosystem?

• By not having any impact on the ecosystem

• By introducing new species to the ecosystem

• By cutting down trees or polluting water, which impacts the natural food web of the ecosystem

• By making the food web more complex

What is the hydrosphere?

• The interacting water on, under, and above Earth's surface

• The solid Earth

• All water found on, under, and over the surface of Earth

• The layer of gases surrounding Earth