Ecology Review

What does a food web represent?

• All connections of energy flow throughout all organisms in a habitat.

• The specific ways that mutualism is carried out.

• A single pathway or energy flow between organisms.

• How carnivores get their food.

Barnacles attach themselves to whales. The whales are so large that they are seemingly unaffected. The barnacles get a habitat and food when the whale enters an area with abundant food resources. What type of relationship exists between the whale and the barnacle?

• mutualism
• commensalism
• parasitism
• predation

Tags

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Animals, such as fiddler crabs, advertise the size of their enlarged claw to intimidate their rivals. This territorial display is an example of what type of relationship?

• predation

• commensalism

• competition

• mutualism

What best describes the type of relationship that occurs between grasshoppers and mice? 

• Commensalism
• Predation
• Mutualism
• Competition

According to the food web, which of the following organisms can be classified into more than one trophic level? 

• grasshopper
• owl
• rabbit
• frog

Tags

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What's missing from the food web?

• decomposers
• producers
• consumers
• autotrophs

Tags

NGSS.MS-LS2-3

Oxpeckers are birds that sit on zebras and rhinos and eat ticks and other parasites that live on their skin. The oxpeckers get food and in return the zebras and rhinos get pest control. When there is danger, the oxpeckers fly upward and scream a warning to help the zebras and rhinos. Which of the following correctly identifies the symbiotic relationship between the oxpeckers and the zebras?

• parasitism

• commensalism

• mutualism

• competition

Epiphytes are plants that grow on other plants. They do not harm the plants that they grow on. Instead they obtain what they need for survival from the air and the sun. Some species of orchids like the one pictured above are examples of epiphytes because they grow on tree trunks in tropical rain forests. Which of the following correctly identifies the relationships between orchids and tropical rain forest trees?

• mutualism

• commensalism

• parasitism

• predation

A food chain contains oak trees (producer), mice (herbivore), black rat snakes (carnivore), and bald eagles (carnivore). If these organisms were placed in an energy pyramid, which organism would be in the energy level with the second-most amount of energy available? 

• Mice
• Oak Trees
• Bald Eagles
• Black Rat Snakes

Which of the following correctly lists the flow of matter in the food web above? 

• plants, animals, nematodes, arthropods
• animals, nematodes, arthropods, plants
• plants, nematodes, arthropods, animals
• nematodes, plants, arthropods, animals

Tags

NGSS.MS-LS2-3