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Ecosystems
Food Webs
Abiotic/Biotic
Symbiosis
Miscellaneous
100
4. The figure below shows an aquarium ecosystem. How many niches does this ecosystem have? A. One—the whole aquarium is one niche. B. Two—the niches of the snails and the fish. C. Three—the niches of the snails, the fish, and the plants. D. Four—the niches of the snails, the fish, the plants, and the sand, rocks, and water.
What is C, Three—the niches of the snails, the fish, and the plants.
100
What is the primary source of energy used by producers? A. heat energy from the sun B. light energy from the sun C. chemical energy from sugar and oxygen D. chemical energy from carbon dioxide and water
What is B, light energy from the sun.
100
Which of the following is a biotic factor? A. wind B. small rocks C. leaves of trees D. light from the sun
What is C, leaves of trees.
100
One relationship between organisms is that of predator-prey. Which of the following is the best description of a predator? A. An organism that eats another organism. B. An organism that participates in symbiosis. C. An organism that is eaten by another organism. D. An organism that benefits at the expense of another organism.
What is A, An organism that eats another organism.
100
Which of these statements describes a species? A. A species is a group of organisms that are closely related. B. A species is a group of organisms that live in the same habitat. C. A species is a group of organisms that live in an area and interact. D. A species is a group of organisms that are closely related and produce fertile offspring.
What is D, A species is a group of organisms that are closely related and produce fertile offspring.
200
Where are energy and other resources exchanged between organisms and the environment?
What is, an ecosystem.
200
Which of the following consumers is a herbivore? A. cat B. horse C. human D. vulture
What is B, horse.
200
What determines where a population can live? A. Its needs are met by the biotic factors in the habitat. B. Its needs are met by the abiotic factors in the habitat. C. Its needs are met by the other populations in the habitat. D. Its needs are met by the abiotic and biotic factors in the habitat.
What is C, Its needs are met by the other populations in the habitat.
200
Aphids can infest and damage plants. Ladybugs eat these aphids. Ladybugs often live on such plants in order to be near their food source. Which answer describes the relationships in this example? A. parasitism, mutualism, and commensalism B. parasitism, predation, and mutualism C. parasitism, predation, and commensalism D. commensalism, mutualism, and predation
What is B, parasitism, predation, and mutualism.
200
What is a population? A. a group of different kinds of organisms living in the same area B. a group of individuals of the same species living in separated areas C. a group of different kinds of organisms living in separated areas D. a group of individuals of the same species living in the same area
What is D, a group of individuals of the same species living in the same area.
300
What is the primary role of decomposers in an ecosystem? A. to control the population of producers and consumers B. to compete with consumers for energy and other resources C. to provide a source of energy for the producers in the ecosystem D. to recycle energy and materials that cannot be used by producers and consumers
What is D, to recycle energy and materials that cannot be used by producers and consumers.
300
In a food web what is being transferred?
What is, energy.
300
What is an abiotic factor?
What is, a nonliving part of an environment.
300
Which relationship could increase the population of one species in an ecosystem without affecting the population of its associated species? A. predation B. mutualism C. parasitism D. commensalism
What is D, commensalism.
300
What is a niche?
What is, the role an organism plays in its environment.
400
Which of the following organisms is a tertiary consumer? A. frog B. redwood tree C. great white shark D. athlete’s foot fungus
What is C, great white shark.
400
Within a food web, there are usually many different food chains. A particular organism may be a part of many different food chains. This global food web includes elements from a meadow ecosystem that interacts with a marsh ecosystem. Which of these is a food chain that is part of the global food web? A. meadow grass → rabbit → fox → hawk B. marsh grass → snail → small fish → hawk C. marsh grass → grasshopper → mouse → fox D. meadow grass → grasshopper → praying mantis → small fish
What is C, marsh grass → grasshopper → mouse → fox.
400
Name two biotic factors in your backyard.
What is, squirrels and grass. For example.
400
The graph below shows the population of a group of rabbits in a restricted area studied over a period of 5 years. Which statement might explain why the population levels off as shown in the graph? A. The resources in the area ran out. B. Predators were introduced into the area. C. The rabbits began to fight with one another. D. Competition for resources limits the rabbit population.
What is D, Competition for resources limits the rabbit population.
400
What kind of consumer are humans?
What is, omnivores.
500
What are the levels of organization in the environment? (3 things in order from biggest to smallest)
What is Ecosystems--->Communities--->Populations.
500
Each level of a food web is called?
What is, a trophic level.
500
What are some ways biotic factors interact with one another in a desert?
What is, the horses eat the grass/ small animals use plants for shelter.
500
Which of the following is an example of commensalism? A. A bird is hunted by a cat, killed, and eaten. B. A bird pecks holes in a tree to find insects. C. A bird finds a hole in a tree and builds a nest in it. D. A bird finds a small shellfish on a beach, cracks its shell, and eats it.
What is C, A bird finds a hole in a tree and builds a nest in it.
500
If an organism only eats meat, they are called?
What is, a carnivore.