Ecosystem Dynamics

What do consumers do to obtain energy?

• Photosynthesize

• Absorb sunlight

• Eat other organisms

• Decompose matter

What is the role of decomposers in an ecosystem?

• Produce food

• Consume producers

• Break down dead matter

• Absorb sunlight

Tags

NGSS.MS-LS2-3

What do tertiary consumers eat?

• Producers

• Primary consumers

• Secondary consumers

• Decomposers

Tags

NGSS.MS-LS2-3

What is the primary source of energy in an ecosystem?

• Water

• Soil

• Sun

• Air

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What is the final stable stage of succession called?

• Pioneer community

• Intermediate community

• Climax community

• Transitional community

Which of the following is an example of primary succession?

• Forest regrowth after a fire

• Plant growth on lava flows

• Grassland recovery after grazing

• Wetland formation after flooding

What happens to energy as you move up the pyramid?

• It increases

• It decreases

• It remains constant

• It doubles

What does more biodiversity lead to in an ecosystem?

• Less resilience

• More resilience

• More competition

• Less stability

Tags

NGSS.MS-LS2-5

What is the role of biodiversity in ecosystem stability?

• It prevents any changes

• It allows adaptation to changes

• It reduces species diversity

• It increases competition

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which stage of succession occurs where there is no previous life?

• Secondary succession

• Tertiary succession

• Primary succession

• Climax succession