Homeostasis

The maximum number of species an ecosystem can sustain is

• homeostasis

• carrying capacity

• biotic factor

• abiotic factor

Tags

NGSS.MS-LS2-4

Which is NOT a biotic factor affecting a population's growth?

• prey

• predator

• temperature

• disease

Tags

NGSS.MS-LS2-4

Which is NOT an abiotic factor affecting a population's growth?

• Temperature

• pH

• Sunlight

• Oxygen

• Prey

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3

Which would not pressure on a species population?

• predators

• habitat loss

• increased O2

• reduction in prey species

A species that greatly impacts many species in an ecosytem is called a(an)

• Abiotic factor

• Keystone species

• Photosynthetic organism

• Carnivore

Tags

NGSS.MS-LS2-4

If a predator is removed from an ecosystem, what would happen to the population of its food source (prey)

• The population would maintain homeostasis

• The population would decrease dramitically

• The population would increase

• They population would starve

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

If a secondary consumer was introduced, what would the indirect effect be on the producers in that ecosystem?

• Producers would increase due to a decrease in primary consumers

• Producers would decrease due to an increase in herbivore

• Producers would not be affected.

• Producers would decrease and then increase rapidly

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How does the removal of the otter affect the carrying capacity of the sea urchin?

• Decreases the carrying capacity

• Increases the carrying capacity

• Does not change the carrying capacity

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

An increase in the rate of photosynthesis will

• make more oxygen

• make more glucose

• increase the rate of respiration

• all of the above

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Gas exchange in humans

• takes place in the alveoli

• involves diffusion

• moves CO2 into the lungs

• Moves O2 into the blood

• All of the above