Biology- Ecology Quiz

A company claims that its fish are grown in large tanks, "each one a complete ecosystem that produces no biological waste." This claim implies that the tanks contain which of the following?

• Primary consumers

• Fish predators

• At least four trophic levels

• A diverse variety of species

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Which of these situations would lead to decrease in the number of producers in an ecosystem?

• An increase in the number of predators

• An increase in the number of herbivores

• An increase in the number of scavengers

• An increase in the number of decomposers

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Mullet eat seagrass and algae. Mullet are ​ (a)   in an estuary.

• primary consumers
• primary producers
• secondary consumers
• tertiary consumers

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Food, water, sunlight, shelter, and space are resources that are  __________.

• limiting factors
• wet
• messy
• found in rocks

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The Mississippi River Delta ecosystem is a wetland home to a large number of fish, birds, and other aquatic organisms. During the last century, this ecosystem has seen a decrease in wetland areas and species diversity due to land development, agriculture, and flooding. Conservation groups have been working to reconnect the Mississippi River with its floodplain and restore lost wetlands. Which of the following statements would result of restoring wetland areas in this ecosystem?

• an increase in the carrying capacity of the ecosystem for wetland organisms.

• an increase in a biotic factors that would cause organisms to develop new adaptations.

• the development of an ecosystem that will prevent invasive species from settling there.

• to prevent the organisms that live in this ecosystem from competing for food and shelter.

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Ecosystem relationships that track the path of matter and energy through several paths are best represented by a ____________.

• Trophic level

• Food chain

• Tropical Rainforest

• Food web

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Herbivores get energy by eating plants. Plants get energy from sunlight. Why does most of the energy captured by plants never become available to herbivores?

• The herbivores find alternate sources of energy

• The plants also provide energy directly to carnivores

• The plants use most of their energy to maintain themselves

• The herbivores conserve the energy in plants for future generations

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The nonliving parts of an environment that the living things need to survive.

• Abiotic

• Biotic

• Climatograph

• Niche

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One of the world's major communities, classified according to the predominant vegetation and characterized by adaptation of organisms to that particular environment.

• Population

• Biome

• Microhabitat

• Biotic Factor

Members of the same species that live in the same geographical area that can interbreed.

• Biome

• Population

• Sustainability

• Abiotic Factor

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