Ecosystems
What is a thing that limits population growth?
limiting factor
what is a biome?
a specific type of environment with specific temperature, rain, plants and animals
what is the difference between a food chain or food web?
a food web shows all feeding relationships
What is an apex predator?
The predator at the top of the food web
What type of limiting factor depends on population size?
density dependent limiting factor
what biome has a lot of rain and exists in tropical areas?
tropical rain forest
If the grass is a producer and a grasshopper eats the grass, what trophic level is the grasshopper?
If the producer has 65,000 kcal, how much energy does the primary consumer have?
6500 kcal
What type of limiting factor does not depend on population size?
density independent limiting factor
a group of the same species living in the same area
If the producer has 35,000 kcal, how much energy does the secondary consumer have?
350 kcal
What percentage of energy was passed from primary consumer to secondary consumer if primary consumer had 2995 kcal and secondary consumers had 250 kcal?
8.3%
what type of limiting factor is a drought?
density independent limiting factor
what is carrying capacity?
the amount of a species that an environment can support
What percentage of energy was passed from producer to primary consumer if producers had 35,236 kcal and primary consumers had 2995 kcal?
8.5% transferred
what percentage of energy is transferred from one trophic level to the next?
10%
what type of limiting factor is predation?
density dependent limiting factor
what type of growth looks like a J curve?
exponential growth
How much energy is lost from one trophic level to the next?
90%
Sun