Which level on this trophic pyramid has the least amount of energy?
Tertiary consumer
Which level on this trophic pyramid has the largest population?
producers
Each trophic level only gets 10% of the available energy, what happens to the other 90% of the energy?
lost as heat
Compare the number of individuals in the producer level to the individuals in the secondary consumer level within a typical ecosystem?
The producer level contains more individuals than the secondary consumer level. : Secondary consumer has a smaller population.
There is 25,000 Kcal available at the producer level. How many Kcal is available for the tertiary consumers?
25 Kcal
Of the following organisms found in the food web, which belongs to the trophic level with the least amount of available energy?
sea lamprey
Which organism in this food web is a producer?
flagellates
What level of consumer is the yellow perch?
secondary consumer
What would happen to the population of sea lamprey if the mollusks population disappeared?
The population of sea lamprey would decrease because the mollusk is a main food source for the sea lamprey.
The law of conservation of energy states that energy can not be created or destroyed. Where does the flagellates get their energy from?
The sun
In the diagram what does box 1 represent in the carbon cycle?
carbon dioxide in the atmosphere
In the diagram what does box 2 represent in the carbon cycle?
photosynthesis
