Ecosystem Stability

What is the carrying capacity of the following graph?

• 1000
• 8000
• 800
• 600

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Growth of biological organisms which goes on unhindered when resources are unlimited.

• population density
• carrying capacity
• exponential growth 
• survivorship curve

Tags

NGSS.MS-LS2-1

Indicates the greatest number of any species that can indefinitely exist within a specific habitat without threatening the existence of other species also living in that habitat

• carrying capacity
• population density
• population
• population demographics

Tags

NGSS.MS-LS2-1

Largest number of individuals of a population that a environment can support

• population 
• limiting factor
• carrying capacity
• none of these

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.
• There would be a decrease in the grass/flowers population.
• There would be a decrease in the mice population.
• There would be an increase in the grass/flowers population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What would most likely happen if an ecosystem no longer received sunlight?

• The number of herbivores would increase
• The number of plants would increase
• all organisms would adapt
• All living organisms would eventually die

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Examples of how humans negatively affect local ecosystems are

• Building dams, deforestation (cutting down trees), adding point sources to nearby streams to allow for run-off, building roads and structures, and salting roads.
• Creating laws to prohibit fishing from local streams.
• Planting trees and other plants to attract native species.
• Removing non-native species from the environment.

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-4

How would the biodiversity of this ecosystem be affected if the lantern fish disappeared?

• The ocean sunfish population would increase.
• The large shark population would die out.
• The squid would die out.
• There would be no change.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which organism do the owl and the weasel compete for in the food web?

• Hawk
• Spider
• Grasshopper
• Shrew

Tags

NGSS.MS-LS2-2

What may happen if the snowshoe hare was removed from the food web pictured?

• The insects in the habitat would increase.
• The shrew population would decrease due to being only hawk food source.
• The willow tree population would decrease.
• Foxes would dies due to no food source. 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4