4.1 Flashcards
What is an ecosystem?
All the organisms and abiotic factors in a community.
What is the equation for photosynthesis?
Sunlight + CO2 + H2O –> O2 + Glucose
In photosynthesis, one type of energy is converted into another type. What are they?
Light energy to chemical energy.
What is the equation for cellular respiration?
O2 + Glucose –> Energy + CO2 + H2O
What is biomass?
The total amount of organisms in an area.
What is productivity?
The rate energy is transferred to organisms.
What is efficiency?
How much energy is being transferred to another trophic level.
What does a pyramid of energy show?
The amount of energy passing through each trophic level over a period of time.
What does a pyramid of biomass show?
The mass of biological material at each trophic level.
What does a pyramid of numbers show?
The number of organisms at each trophic level.
If a primary consumer has 4.5 energy, how much will the secondary consumer get?
0.45
If a tertiary consumer got 6.8 energy, how much did the secondary consumer have?
68
If a secondary consumer has 87.3 energy, how much will the quarternary consumer get?
0.873
Is it better to eat at a lower or higher trophic level?
Lower.
Why is it easier for lower trophic level organisms to get energy than higher?
Because higher trophic level organisms are only getting 10% of the energy from the organisms below them.
How does solar energy affect biomass?
The more solar energy, the more biomass.
How does solar energy affect productivity?
The more solar energy, the faster productivity is.
