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- 1. Multiple Choice
How do autotrophic organisms obtain their energy?
Consuming other organisms.
Converting radiant energy into chemical energy.
- 2. Multiple ChoiceThe direction that the arrowhead points to indicates...The direction where energy flows toThe direction where energy comes from
- 3. Multiple ChoiceWhich of the following organisms are heterotrophic?Aloe vera plantFruitFruit fliesPine tree
- 4. Multiple Choice
What is the ecological role of the krill in this food chain?Tertiary ConsumerProducerPrimary ConsumerSecondary Consumer - 5. Multiple ChoiceWhat is the ecological role of the seal?Primary ConsumerSecondary ConsumerProducerTertiary Consumer
- 6. Multiple Choice
On average, how much energy is passed on to the next trophic level?
100%
10%
1%
0%
- 7. Multiple ChoiceWhat starts every food chain or food web?ProducersPrimary ConsumersSecondary ConsumersThe Sun
- 8. Multiple Choice
Which trophic level are krill in this food chain?
1
3
2
4
- 9. Multiple ChoiceWhat does a food web represent?All connections of energy flow throughout all organisms in a habitat.The specific ways that mutualism is carried out.A single pathway or energy flow between organisms.How carnivores get their food.
- 10. Multiple Choice
Which of the following would be the definition of a detritivore?
Animals that eat insects.
Organisms that feed on rocks, recycling the nutrients back into the ground.
Organisms that eat only plants
Things that feed on dead, rotting organisms
- 11. Multiple ChoiceA wolf eats a rabbit, that just ate some berries. What would you call the rabbit?ProducerOmnivorePrimary Consumer2nd order Heterotrph
- 12. Multiple Choice
What limits the length of a food chain in an ecosystem?
The size of the individual organisms
Competition between organisms
The loss of energy between trophic levels
Natural selection
- 13. Multiple Choice
What is lost between trophic levels and cannot be recycled?
Heat
Nitrogen
Carbon compounds
Biomass
- 14. Multiple Choice
energy can neither be created nor destroyed - only converted or transformed from one form of energy to another
Law of Conservation of Energy
Law of Conservation of Mass
Newton's first law
Newton's Second Law
- 15. Multiple Choice
energy of electromagnetic waves, such as light energy from the sun
sound energy
mechanical energy
nuclear energy
radiant energy
- 16. Multiple Choice
energy that is possessed by an object due to its motion (movement)
Mechanical Energy
Radiant Energy
Nuclear Energy
Natural Energy
- 17. Multiple Choice
form of energy resulting from the flow of electric charge
mechanical energy
nuclear energy
radiant energy
electrical energy
- 18. Multiple Choice
energy that comes from heat that is caused by the movement of particles within an object
nuclear energy
mechanical energy
thermal energy
radiant energy
- 19. Multiple ChoiceWhat is the original source of almost all energy in most ecosystems?carbohydratessunlightwatercarbon
- 20. Multiple ChoiceWhat is the term for each step in the transfer of energy and matter within a biological community?energy pathfood webtrophic levelfood pyramid
- 21. Multiple ChoiceAs you move upward, from level to level, in an energy pyramid, energy _____.increasesdecreasesstays the sameincreases exponentially
- 22. Multiple ChoiceIf there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?10 Kcal1 Kcal100 Kcal1000 Kcal
- 23. Multiple Choice
Energy is lost from biological communities as:
heat
biomass not eaten
biomass not absorbed
- 24. Multiple ChoiceThe diagram is intended to show relationships in an ecosystem. What do the arrows represent?The direction of population migrationDifferences in dietary habitsProgressively smaller organismsThe direction of the energy flow
- 25. Multiple ChoiceThe diagram represents a model of a food pyramid. 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
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