Bio Population Ecology

What do limiting factors do?

• Separate biotic factors from abiotic factors.

• Determine which is the predator and which is the prey.

• Regulate how many organisms live in an ecosystem.

• Determine which natural disasters will hit an area.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is a density-dependent factor?

• Drought

• Tornado

• Temperature

• Competition

Which of the following is a density-independent factor?

• Disease

• Competition

• Floods

• Predation

The efficiency of energy transfer from a lower trophic level to the next highest level is roughly

• 1%

• 10%

• 100%

• 1000%

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

If the TERTIARTY consumer gets 300 J of energy, how much did the PRIMARY consumer get?

Tags

NGSS.MS-LS2-3

A new species of mussel moved into the great lakes, out-competing the native species. This new species would best be defined as...

• Native Species

• Bad species

• Invasive species

• better species

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A forest fire has swept through the west coast leaving only tree stumps and soil behind. What type of succession will occur next?

• Primary

• secondary

• tertiary

• Quantinary

Tags

NGSS.MS-LS2-4

What order would these appear in during succession?

• Perennial grasses and shrubs

• Small, shade-intolerant trees

• Lychen

• Large hardwood trees such as oak and hickory

• Small annual plants

What is the name given to lichen or algae after a primary succession?

• pioneer species

• volunteer species

• founder species

• conqueror species

What is it called when a group of the same organisms living together in the same place at the same time?

• An organism

• A population

• A community

• A biome