Ecology Quiz

In a food chain, which organism is usually at the beginning and captures energy from the sun?

• A) Herbivore

• B) Producer

• C) Carnivore

• D) Decomposer

Benjamin, Ava, and Hannah are discussing the primary source of energy in most food chains and webs. Can you help them figure it out?

• A) Water

• B) Air

• C) Sunlight

• D) Soil

In a food web, an organism that eats both plants and animals is called a:

• A) Herbivore

• B) Omnivore

• C) Carnivore

• D) Decomposer

What do arrows in a food web represent?

• Predator-prey relationship
• Direction of movement in a population

• Direction and flow of energy

• Physical contact between organisms

Which of the following is an example of a secondary consumer in a food chain?

• A) Hawk

• B) Grasshopper

• C) Grass

• D) Algae

Zoe, David, and Abigail are exploring an ecosystem and come across an ecological pyramid. They wonder which level represents the producers in the ecosystem. Can you help them?

• A) Primary producers

• B) Primary consumers

• C) Secondary consumers

• D) Tertiary consumers

What type of ecological pyramid is typically upright, with energy decreasing as you move up the levels?

• A) Pyramid of numbers

• B) Pyramid of biomass

• C) Pyramid of energy

• D) Pyramid of productivity

Which level of the ecological pyramid has the most energy available?

• A) Primary consumers

• B) Secondary consumers

• C) Tertiary consumers

• D) Producers

Mason, Benjamin, and Grace are exploring an ecosystem with 100,000 kilograms of grass. They are curious about the number of herbivores in the ecological pyramid if the energy transfer is 10% efficient. Can you help them figure it out?

• A) 1,000 kilograms

• B) 10,000 kilograms

• C) 100,000 kilograms

• D) 1,000,000 kilograms

A keystone species is one that:

• A) Serves as the top predator in an ecosystem

• B) Has no significant impact on the ecosystem

• C) Plays a critical role in maintaining the structure and diversity of an ecosystem

• D) Is extinct and no longer affects the ecosystem