Food Web Quiz

In a typical North American forest ecosystem, which group would hawks and owls belong to based on their diet?

• Herbivores

• Carnivores

• Omnivores

• Decomposers

During a field trip, Kai observed a food web in a local ecosystem. Which of the following is a primary consumer in the food web Kai observed?

• Snakes

• Rabbits

• Hawks

• Spiders

In a garden ecosystem, what role do plants like sunflowers and roses play?

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

What will MOST LIKELY happen if a new type of grass, known as Festuca Luna, is introduced into a local park's food web?

• The herbivores that feed on the grass will increase.

• The carnivores that prey on these herbivores will decrease.

• The omnivores in the area will decrease.

• The decomposers in the soil will decrease.

Imagine a natural ecosystem involving the following food chain: algae → fish → bear. Charlotte observes this chain during her field study. If Charlotte were to diagram this food chain in a trophic pyramid, the bear would be placed on level ____, and would have ____ amount of energy available to it.

• C; the least

• A; the least

• B; an intermediate

• A; the greatest

A group of eagles observed by students Mia, Lily, and Ava around Lake Tahoe would be considered a(n):

• community

• ecosystem

• species

• population

In a controlled ecological study, Priya observed that the population of mice in a specific area has been stable for ten years. Which of the following changes would likely cause the number of mice to begin to decrease?

• a decrease in competition between the mice

• an increase in predators (who eat them)

• a decrease in disease

• an increase in mating season

Elijah, Mia, and Ava are studying an ecosystem. Help them identify whether the following are abiotic or biotic factors:

• Rabbit - Biotic, Rocks - Abiotic, Algae - Biotic, Climate - Abiotic

• Rabbit - Abiotic, Rocks - Biotic, Algae - Abiotic, Climate - Biotic

• Rabbit - Biotic, Rocks - Biotic, Algae - Abiotic, Climate - Abiotic

• Rabbit - Abiotic, Rocks - Abiotic, Algae - Biotic, Climate - Biotic

Based on the chart, which of these events would harm the Georgia Black Bear population?

• Introduction of the bald eagle

• Restriction on humans hunting bears

• Damming lakes and rivers

• Large scale forest fires

In a suburban home, Aiden noticed that the wooden structures of his backyard shed were deteriorating. Upon investigation, he learned that termites feed on the wood because they can digest the cellulose it contains, thanks to the bacteria and protists living in their intestines. What type of symbiotic relationship does this scenario describe?

• Commensalism

• Mutualism

• Predatory prey

• Parasitism