Unit 3 Ecology final quiz

Organisms that can manufacture organic nutrients from substances in the abiotic environment are classified as

• heterotrophs

• fungi

• predators

• autotrophs

Organisms that must consume biotic nutrients are classified as

• heterotrophs

• fungi

• predators

• Autotrophs

Which organism(s) would you expect to find in the Trophic level ‘A’?

• Owl

• Mice

• Grass

• Deer

Tags

NGSS.MS-LS2-3

If producers have 100% energy in the ecosystem, how much energy would organisms in trophic level ‘D’ have?

• 100%

• 10%

• 1%

• 0.1%

Tags

NGSS.MS-LS2-3

What happens to the energy that is not transferred up an ecological pyramid?

• This energy is lost as heat as organisms perform life functions

• Plants absorb this energy for chemosynthesis

• All energy is transferred at each trophic level

• It is stored in the fat cells of consumers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which factor would have the greatest effect on the flow of energy into an ecosystem?

• a large decrease in the amount of sunlight available

• a large increase in the number of carnivores

• a small increase in the number of decomposers

• a small decrease in the amount of minerals available

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which statement best describes what happens in this food pyramid?

• More organisms die at higher levels than at lower levels, resulting in less mass at higher levels.

• Energy is lost to the environment at each level, so less mass can be supported at each higher level.

• When organisms die at higher levels, their remains sink to lower levels, increasing the mass of lower levels.

• Organisms decay at each level, and thus less mass can be supported at higher levels.

Tags

NGSS.MS-LS2-3

According to the ecological pyramid above, large fish would best be described as…

• Primary Producer

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

Tags

NGSS.MS-LS2-3

If the mass of the plants in the ecological pyramid is 10,000 kg what would you expect the mass of the large fish population to be?

• 1,000 kg

• 100 kg

• 10 kg

• 1.0 kg

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

Where do the primary producers get their energy from in the ecological pyramid above?

• Small Fish

• Large Fish

• Birds

• The Sun

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6