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16 questions
A student researching a northern forest ecosystem learns the following information about feeding relationships in the ecosystem.
Which foo web best represents the flow of energy in these relationships?
The flow of energy in some Australian food chains is modeled in the energy pyramid.
Based on the model, which consumers would receieve the greatest amount of energy captured by the producers in their food chains?
Wedge-tailed eagles
Chuditch
Ring-tailed oppossums
Eucalyptus trees
A partial grassland food web is shown.
Which of the following best describes a relationship in this grassland?
Badgers are top predators because they eat upland sandpipers and beetles.
A producer-consumer relationship exists between lupines and ants.
A predator-prey relationship exists between beetles and ground squirrels.
Upland sandpipers are primary and secondary consumers because they eat grasses and grasshoppers.
An energy pyramid is shown.
Which sentence best describes how energy flows through this pyramid?
Energy is transferred down each level of the energy pyramid.
The energy lost at each level is consumed by organisms in the top level.
Energy is transferred from organisms in one level to those in the level above.
The organisms at the bottom level provide energy directly to organisms in all other levels.
A partial mountain forest food web is shown.
Which statement does NOT describe a relationship shown in the food web?
Elk are prey for mountain lions.
Mice are herbivores that consume grasses and are preyed on by snakes.
Owls prey on rabbits and frogs.
Rabbits consume shrubs and are parasites of grasses.
A partial marine food web is shown.
Which organisms all consume the same producer?
Crabs, pilchards, blennies
Euphausiids, sweeps, water fleas
Tiger sharks, dolphins, octopuses
Sea urchins, crabs, octopuses
A partial food web is shown. The numbers in the boxes represent animals in the food web. Which organisms have three carnivorous predators and a consumer–producer relationship with at least one organism?
The organisms that fit in boxes 2, 3, and 7
The organisms that fit in boxes 5 and 7
The organisms that fit in boxes 4 and 6
The organisms that fit in boxes 2 and 7 only
A student researching a northern forest ecosystem learns the following information about feeding relationships in the ecosystem. Which food web best represents the flow of energy in these feeding relationships?
Based on the diagram, which of the following statements is valid?
Owls are predators of bats, and bats are predators of moths.
Beetles compete with bats and cave spiders.
Snakes prey on bats and owls.
None of the above
The partial food web shown below is found in an aquatic environment. This type of environment has many organisms in the same trophic levels.
Which two types of organisms in this aquatic food web have a producer-consumer relationship?
Microscopic algae and white suckers
Small invertebrates and amphipods
Phytoplankton and mummichogs
Amphipods and channel catfish
Some students are studying the relationships between organisms in a food web.
How many predators shown in this food web are omnivores?
1
2
3
4
Which of these describes a relationship between organisms in the soil food web below?
Protozoa get nutrients from small arthropods.
Mammals are predators of birds.
Nematodes prey on arthropods.
Bacteria get nutrients from organic matter.
The flow of energy in some Australian food chains is modeled in the energy pyramid below.
Based on the model, which consumer would receive the greatest amount of energy captured by the producers in their food chains?
Wedge-tailed eagles
Chuditch
Ring-tailed opossums
Eucalyptus trees
in the aquatic food web below, which two organisms have a predator-prey relationship?
Shad and sturgeons
Sturgeons and blue crabs
Blue crabs and rangia clams
Copepods and amphipods
The African savanna is a grassland scattered with shrubs an small trees. Some of the organisms that live in the savanna are shown below.
Which two types of organisms have a producer-consumer relationship in this African savanna?
Zebras and hyenas
Hyenas and cheetahs
Trees and elephants
Fungi and dung beetles
How many organisms in this food web eat only producers?
1
2
3
4
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