Question | Answer |
What is ecology? | The interaction of the biological community (living organisms) & its environment |
What is an abiotic factor? | A non-living factor. |
What is a biotic factor? | How living organisms interact with each other. |
Which of the following is a biotic factor?
Water, amount of oxygen, competition, temperature. | Competition |
During photosyntheis CO2 + H2O & light are used to make O2 + ? | Glucose |
Where does 30% of the world's oxygen come from? | The rain forest. |
What is the plant cell organelle that is responsible for photosynthesis? | Chloroplasts |
What is the plant cell organelle that opens and closes that allows for gas exchange? | Guard Cell |
What is the plant cell organelle that makes the leaf water proof? | Waxy Cuticle |
When a guard cell is open, O2 & CO2 can be exchanged in the leaf. What is that opening called? | Stomata |
What is a level in a food chain called? | Trophic Level |
What is a producer? | An organism that produces its own food by photosynthesis. |
What is a herbivore? | An organism that only eats producers. |
What is a similarity & a difference between a carnivore & top carnivore? | Similarity: They both eat other consumers
Difference: A top carnivore is not eaten by other organisms but a carnivore may be eaten by other organisms. |
What are organisms that break down waste & dead organisms called? | Decomposers |
What percentage of energy is lost as you move to the next trophic level? | Ten percent |
What is biomass? | The total mass of all the cells of an organism. |
What is biomagnification? | The increase of concentration of a toxin as you move up the food chain. |
What is trophic efficiency? | A measure of the amount energy transferred between trophic levels. |