Ecosystem Stability Practice

What is an ecosystem?

• A community of living organisms in conjunction with the nonliving components of their environment

• A new type of exercise equipment

• A type of exotic flower

• A type of computer software

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What are the different components of an ecosystem?

• Various types of weather patterns

• The different components of an ecosystem include biotic (living) and abiotic (non-living) factors such as plants, animals, microorganisms, soil, water, air, and sunlight.

• Different species of birds and insects

• Different types of rocks and minerals

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Explain the process of photosynthesis and its importance in an ecosystem.

• Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll. It is important in an ecosystem as it produces oxygen, which is essential for the survival of all living organisms, and it also provides food for the organisms in the ecosystem.

• Photosynthesis is not important in an ecosystem as it only benefits plants.

• Photosynthesis is the process of converting oxygen into carbon dioxide.

• Photosynthesis is a process that occurs only at night and has no impact on the ecosystem.

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Ecological balance is the state of (a)   between different organisms and their environment.

• Ecological balance refers to the im
• The concept of ecological balance i
• State of equilibrium between differ
• Ecological balance is the result of

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How can we conserve and protect ecosystems?

• By implementing sustainable practices, protecting natural habitats, reducing pollution, and promoting conservation efforts.

• By increasing pollution and destroying natural habitats

• By cutting down all the trees and clearing the land for development

• By ignoring conservation efforts and exploiting natural resources

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A species that is not native to an area is called: 

• Native Species
• Natural Species
• Invasive Species
• Symbiotic Species

Which answer is true regarding biodiversity?

• As long as there are enough producers, an ecosystem is considered to have a good amount of biodiversity.

• The rain forest has an unhealthy ecosystem because its biodiversity is too great.

• An ecosystem is healthier when the biodiversity is great.

• Biodiversity is positively affected when non-native species are introduced into an environment

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Match the following impacts of deforestation on the ecosystem:

• Reduction in tree cover affects food sources

• Birds will increase

• Habitat loss reduces biodiversity

• Squirrels will increase

• Loss of trees leads to more open space

• Insects and birds will increase

• Increased sunlight promotes growth of certain species

• Insects and birds will decrease

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Describe what would happen to the zebra population and the plant population if the cheetah and hyena both left the ecosystem.

• The zebra population would decrease with the absence of predators; the plant population would stay the same.

• The zebra population would greatly increase, causing the plant population to decrease.

• The zebra population would decrease, causing the plant population to increase.

• The zebra population would greatly increase, causing the plant population to also increase.

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The San Marcos salamander, Eurycea nana, is a light reddish-brown translucent salamander about 2-5 cm in length. E. nana is found only in Spring Lake and a portion of the San Marcos River.

Which human activity would most likely decrease the ability of the salamanders to survive?

• Increasing water consumption that decreases the flow of clean water from the springs that feed the river.

• Public transportation that reduces the number of automobiles that contribute to pollution runoff into the river.

• Tourism that helps fund the education programs related to tiver ecosystem conservation.

• The addition of a new food source into the river that limits competition for resources.

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