IB ESS Midterm REview

The total mass of living tissue at each trophic level can be shown in a(n)

• energy pyramid
• pyramid of numbers
• biomass pyramid
• biogeochemical cycle

Why are food chains, such as the one shown, limited to 4-5 organisms?

• There are not more organisms in the ecosystem
• Organisms must share resources
• Energy transfers are inefficient
• They are only limited when organisms are living on land.

Tags

NGSS.MS-LS2-3

According to the food web shown, what would occur if there were a drastic decrease in the squirrel population?

• There would be fewer vultures
• There would be more nuts and seeds.
• There would be fewer vultures & there would be more nuts and seeds.
• There would be more grass.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-1

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

Tags

NGSS.MS-LS2-3

Choose all abiotic factors of an environment

• temperature

• sunlight

• parasites

• primary producers

• wind

Tags

NGSS.MS-LS2-3

NGSS.MS-ESS2-6

Carrying capacity of a habitat is determined by

• population growth rate

• limiting factors

• j versus s type population growth

• r and k survival strategies

Tags

NGSS.HS-LS2-1

The sum total of a population's use of the biotic and abiotic resources of its habitat constitutes its

• evolution.

• range.

• niche.

• environment.

Tags

NGSS.MS-LS2-2

In a hypothetical food chain (grass --> grasshoppers --> sparrows --> hawks) the grasshoppers are considered .... (Choose 2 answers)

• primary producers.

• secondary producers.

• primary consumers.

• secondary consumers.

• herbivores

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

Which law of thermodynamics explains the shape of an ecological pyramid of energy?

• 1st law

• 2nd law

• 3rd law

Select the inputs to photosynthesis.

• CO2

• H2O

• Glucose

• O2

• Sunlight

Tags

NGSS.MS-LS1-6