Which would most likely cause a decrease in the predator population in an ecosystem? A. an increase in the types of plants in the ecosystem B. a decrease in the prey population in the ecosystem C. an increase in the height of trees in the ecosystem D. a decrease in the types of decomposers in the ecosystem
Which best describes the importance of photosynthesis in an ecosystem? A. It allows plants to create energy and pass it along to other members of the ecosystem. B. It allows animals to create energy and pass it along to other members of the ecosystem. C. It allows decomposers to create energy and pass it along to other members of the ecosystem.
It is common to see wild animals like deer and coyotes in large cities and neighborhoods. Which is most likely a reason the animals are found in these areas? A. They prefer to be near houses. B. They prefer to be near people. C. Their habitat is increasing in size. D. Their habitat is decreasing in size.
Which is a benefit of having different types of producers in an ecosystem? A. There is more competition for food by consumers. B. The ecosystem can support more types of consumers. C. There will be more decomposers living in the ecosystem. D. The ecosystem will be better able to support carnivores.
How would a reduction in the number of producers in an ecosystem affect the consumers? A. Fewer producers in an ecosystem means less carbon dioxide is available for consumers. B. Fewer producers in an ecosystem means less energy is available for consumers. C. Fewer producers in an ecosystem means more oxygen is available for consumers. D. Fewer producers in an ecosystem means more nitrogen is available for consumers.
A developer buys land on a wooded mountain to build hotels for people visiting a new winter sports center. How will this most likely affect birds living in the area? A. Birds will become completely dependent on humans for food and water. B. Birds will have more places to build nests as more trees will be planted. C. Population diversity and the number of birds will increase as more food and water resources become available. D. Population diversity and the number of birds will decrease as fewer food and water resources become available
Which will most likely result if large areas of trees in a forest are removed to build neighborhoods? A. There would be an increase in the loss of habitats. B. There would be an increase in the number of predators. C. There would be an increase in food resources for animals. D. There would be an increase in the number species of plants.
Which will most likely happen to the grasshopper population if the grass population decreases? A. The grasshopper population will increase because there will be less competition. B. The grasshopper population will decrease because there will be less food available. C. The grasshopper population will increase because there will be more food available. D. The grasshopper population will decrease because there will be an increase in the predator population.
A rabbit eats a variety of plants in an ecosystem. Which best describes the effect a drought would have on both rabbits and plants in an ecosystem? A. Both populations would increase. B. Both populations would decrease. C. Plant life would decrease and the rabbit population would increase.
The number of fish in a lake suddenly increases. How will the increase most likely affect the lake? A. There will be less water in the lake. B. More plants will grow in the lake. C. More frogs will live in the lake. D. There will be fewer insects in the lake
Which is one way earthworms improve the ability of most plants to survive in their habitats? A. They improve the quality of the soil. B. They provide more water for the soil. C. They increase the temperature of the soil. D. They fight diseases that occur on plant roots.
How are consumers generally classified? A. by the amount of food they eat B. by the size of their tracks C. by the type of food they eat D. by the way they digest their food
Which organism is a consumer? A. grass B. ladybug C. pine tree D. sunflower
Which type of organism eats only plants? A. carnivore B. herbivore C. producer D. scavenger
A crow eats the remains of a dead animal. What type of consumer does this prove the crow to be? A. a decomposer B. a herbivore C. a predator D. a scavenger
Which group will carnivores feed upon? A. fungi B. bacteria C. consumers D. producers
Which group of organisms are consumers? A. bacteria, fungi, and mushrooms B. cactus, fern, and maple tree C. deer, rabbit, and squirrel D. moss, protist, and algae
Meadow voles are small mouselike animals that eat plants and insects. Their niche in an ecosystem is a A. omnivore. B. herbivore. C. producer. D. scavenger.
Which best describes animals that eat only plants? A. decomposers B. carnivores C. herbivores
A brown bear eats a variety of foods including berries, insects, and small animals. Which best describes a brown bear? A. producer B. herbivore C. carnivore D. omnivore
