Food Chains
What is the first organism in every food chain called?
Answer: Producer
True or False:
A food web shows only one feeding relationship.
Answer: False
What is an ecosystem?
Answer: Living and nonliving things interacting together
What is a predator?
Answer: An organism that hunts and eats other animals
Is pollution a positive or negative human impact?
Answer: Negative
What do arrows in a food chain represent?
Answer: Transfer of energy
Why are food webs more realistic than food chains?
Answer: Organisms eat more than one thing.
Give one example of an abiotic factor.
Answer: Water, sunlight, temperature, soil, etc.
Why do prey animals often have eyes on the sides of their heads?
Answer: Wider field of vision
Name one way humans can help ecosystems.
Answer: Recycling, planting trees, conservation, etc.
What type of consumer eats only plants?
Answer: Herbivore
What could happen if a producer disappears from a food web?
Answer: Consumers may lose food and populations may decrease.
What is biodiversity?
Answer: Variety of living organisms in an ecosystem
What usually happens to predator populations when prey populations increase?
Answer: Predator populations increase.
What is conservation?
Answer: Protecting and preserving ecosystems and organisms
What is the term for an animal hunted by another animal?
Answer: Prey
Name one apex predator from the ocean food web.
Answer: Killer whale
What do organisms compete for in ecosystems?
Answer: Food, water, space, mates, sunlight, etc.
Give one adaptation predators have.
Answer: Sharp teeth, claws, forward-facing eyes, speed, etc.
What is one threat to biodiversity?
Answer: Pollution, deforestation, climate change, invasive species, etc.
What trophic level comes after the primary consumer?
Answer: Secondary consumer
If the fish population decreases, what might happen to predators that eat fish?
Answer: Their population may decrease.
What does interdependence mean?
Answer: Organisms depend on each other for survival.
What happens to prey populations if there are too many predators?
Answer: Prey populations decrease.
Why are pollinators important?
Answer: They help plants reproduce and support food production.