LS. 8.2.4 Flow of Energy and Cycling of Matter in Ecosystems

Multiple Choice

I am the chef for the ecosystem because I am the only organism that can make my own food.

• consumer

• producer

• decomposer

Multiple Choice

Living things that eat other living things are called...

• Consumers

• Carnivores

• Omnivores

• Animals

Multiple Choice

A decomposer?

• Eats dead plants or animals and breaks down to put nutrients in the soil

• Eats plants or other animals for food

• Makes its own food

Multiple Choice

Why are plants called producers?

• They make carbon dioxide

• They decompose

• They make or produce their own food

• They are omnivores

Multiple Choice

How much energy is available to be passed on to the next trophic level in an ecosystem?

• 100%

• 10%

• 50%

• 75%

Multiple Choice

Which level will contain plants?

• A

• B

• C

• D

Multiple Choice

In the energy pyramid here, which organisms have the most energy available?

• Producers

• Carnivores

• Herbivores

• Top Predator

Multiple Choice

In the energy pyramid below, which organism has the least amount of energy available?

• Producers

• Herbivores

• Carnivores

• Top Predator

Multiple Choice

Which organism recieves the least amount of energy from the producer?

• Owl

• Grasshopper

• Lilypad

• Mouse

Multiple Choice

The largest group of organisms found in a food web would be:

• Primary Consumers

• Producers

• Decomposers

• Tertiary Consumers

Multiple Choice

Food Chain or Food Web?

• Food Chain

• Food Web

Multiple Choice

Why are food chains / food webs helpful?

• To see what plants eat other animals

• To see what animals eat other sea creatures

• To see what animals eat other animals / organisms

• To see what plants eat other plants

Multiple Choice

What does a food web represent? (¿Qué representa una red alimenticia?)

• All connections of energy flow throughout all organisms in a habitat. (Todas las conexiones de flujo de energía a través de todos los organismos en un hábitat.)

• The specific ways that organisms help each other out. (Las formas específicas en que los organismos se ayudan entre sí.)

• A single pathway or energy flow between organisms. (Una sola vía o flujo de energía entre los organismos.)

• How carnivores get their food. (Como consiguen su comida los carnívoros.)

Multiple Choice

An elephant eats only plants. Which type of consumer is an elephant? (Un elefante come solo plantas. ¿Qué tipo de consumidor es un elefante?)

• An herbivore (Un herbívoro)

• A carnivore (Un carnívoro)

• A producer (Un productor)

• A decomposer (Un descomponedor)

Multiple Choice

In a food web, which of these is a producer? (En una red alimenticia, ¿cuál de estos es un productor?)

• humans (Humanos)

• lizards (lagartijos)

• spiders (Arañas)

• grass (pasto)

Multiple Choice

A spider eats insects, like flies and crickets. What type of consumer is a spider? (Una araña come insectos, como moscas y grillos. ¿Qué tipo de consumidor es una araña?)

• herbivore (herbívoro)

• carnivore (carnívoro)

• omnivore (omnívoro)

• decomposer (descomponedor)

Multiple Choice

All energy on Earth ultimately comes from what source?

• Water

• Sun

• Consumers

• Oxygen

Multiple Choice

What does a Primary Consumer eat?

• Tertiary Consumers

• Secondary Consumers

• Producers

Multiple Choice

What is the decomposer in the picture above?

• grass

• fungus/mushrooms

• hawk

• frog

Multiple Choice

The diagram provided shows a marine food chain. In this food chain, the zooplankton are

• primary producers.

• primary consumers.

• secondary consumers.

• tertiary consumers.

Multiple Choice

Which is an abiotic factor that most limits the number of fish living in a pond?

• the color of the water

• the temperature of the water

• the presence of plants

• the number of predators

Multiple Choice

How do organisms like plants contribute to water cycle?

• through condensation

• through evaporation

• through precipitation

• through transpiration

Multiple Choice

Two species of fish live in the same pond. Which of the following would increase competition between these two species of fish?

• Habitat temperature increases.

• Population of birds that eat the fish increases.

• Number of food plants the fish eat increases.

• Water level in the pond decreases.

Multiple Choice

Through food chains, the carbon that is in plants moves to the animals that eat them. When an animal eats another animal, carbon is ___________________.

• released

• transferred

• dissolved

• gone

Multiple Choice

Which process contributes carbon dioxide to the atmosphere?

• respiration

• photosynthesis

• tree farms

Multiple Choice

Which process removes carbon dioxide from the atmosphere?

• deforestation

• tree farms

• burning fossil fuels

• cellular respiration

Multiple Choice

Which of the following removes carbon from the atmosphere?

• Combustion
• Respiration
• Photosynthesis
• Death

Multiple Choice

Respiration is the process by which animals take in _____ and release _____ to make energy. 

• photosynthesis, air
• carbon, oxygen
• oxygen
• oxygen, carbon dioxide