Biology Unit
Are humans biotic or abiotic?
biotic
Is soil biotic or abiotic?
abiotic
What are the five trophic levels? (bottom to top)
producer, primary consumer, secondary consumer, tertiary consumer, quaternary consumer
how much biomass/energy is lost going up each trophic level?
10%
What is energy measured in?
Joules (J)
Is water biotic or abiotic?
abiotic
What are the two kinds of residents of an ecosystem?
producers & consumers
What are the four kinds of consumers?
herbivores, carnivores, omnivores, decomposers
the total mass of living organisms in a species/area/ecosystem
biomass
The blanket of gases around the earths surface
atmosphere
the rocky outer shell of the earth (including mountains, the ground, etc)
lithosphere
the sphere of all water on earth
hydrosphere
the region where life on earth can form
biosphere
what are the four eco-spheres? (bottom - up)
hydrosphere, lithosphere, biosphere, atmosphere