Ecosystem Interactions and Food Chains

The video explains the role of the sun as a primary energy source in ecosystems, highlighting how energy flows through food chains and food webs. It describes the roles of producers, consumers, and decomposers, and explains the different types of consumers: herbivores, carnivores, and omnivores. The video also discusses the interconnectedness of species within food webs and the potential impact of species extinction on ecosystems.

What is the primary source of energy for ecosystems?

• The Moon

• The Sun

• The Wind

• The Ocean

What happens to plants and animals if the sun is absent?

• They thrive

• They evolve

• They migrate

• They perish

In a food chain, energy is transferred from the sun to which organism first?

• Consumer

• Decomposer

• Producer

• Carnivore

Which of the following is a correct sequence in a food chain?

• Sun -> Snake -> Frog

• Sun -> Plant -> Insect

• Sun -> Hawk -> Snake

• Sun -> Frog -> Plant

What type of consumer eats both plants and animals?

• Omnivore

• Decomposer

• Herbivore

• Carnivore

Which organism breaks down dead plants and animals for energy?

• Producer

• Consumer

• Decomposer

• Herbivore

What is a food web?

• A list of producers

• A diagram of decomposers

• A single food chain

• An interconnected network of food chains

How does the extinction of one species affect an ecosystem?

• It has no effect

• It benefits all other species

• It negatively impacts interconnected species

• It only affects decomposers

What might happen if grasshoppers go extinct in an ecosystem?

• Only grasshoppers are affected

• Only decomposers are affected

• All species that rely on grasshoppers are affected

• Only plants are affected

Which of the following is a secondary consumer?

• Insect

• Plant

• Sun

• Frog