Ecology #3: Ecosystems and Interactions

Birds depend on insects for food. What happens if pesticides cause the insect population to DECREASE?

• Bird population will increase.

• Bird population will decrease.

• Bird population will both increase and decrease

• No change to bird population

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which answer option would pose the largest threat to an ecosystem?

• Increase in producers

• Introduction of a non-native species

• Increase in predators

• Eradication of an invasive species

Tags

NGSS.MS-LS2-4

Which answer is true about biodiversity in an ecosystem?

• 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

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

photosynthesis is...

• How plants make sugar from sunlight, water, and carbon dioxide

• The process of converting glucose to energy

• The process of nitrogen fixing to carbon

• Really fun to say

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

All of the different populations that live in a specific area.

• ecosystem

• habitat

• ecology

• community

A pride of lions stalks, tackles, and kills an antelope. Which is best being demonstrated?

• predation

• mutualism

• parasitism

• commensalism

Which term best describes two predators living in the same habitat who feed on the same prey?

• coexistence

• competition

• mutualism

• predatory

Plants interact with living and nonliving components in their environment. Which is an interaction with a nonliving element?

• Small insects eating the stems of the plants

• Humans breathing oxygen released by plants

• Bees gathering pollen from flowers of plants

• Sandy soil holding the roots of the plants

Tags

NGSS.MS-LS2-3

Which of these is an example of one living thing depending on another living thing?

• Cat walking on the sand
• Bird building a nest in a tree
• Dog warming in the sunlight
• Squirrel drinking water

Tags

NGSS.3-LS2-1

Living and nonliving things interacting in an environment is called:

• A. Organism
• B. Producer
• C. Consumer
• D. Ecosystem

Tags

NGSS.MS-LS2-3