Which sphere of the earth is made of all the water that is on the earth's surface, underground, and in the air?
Hydrosphere
What is the difference between biotic and abiotic factors
biotic-living things
abiotic- nonliving things
__________ depend on autotrophs for energy
heterotrophs/producers
define mutualism
a relationship where both organisms benefit
What is a more accurate representation of feeding relationships? Food chains or food webs?
Food webs
Which sphere of the earth is made of rocks, minerals, and soil?
Geosphere/lithosphere
________ is the unique role a species plays in the environment
niche
__________ obtain energy from the sun or chemical compounds
autotrophs/producers
define commensalism
one organism benefits and the other is unaffected
least; most
What is the frozen part of the hydrosphere called?
cryosphere
Which level of organization is defined as 'interacting populations (many species together at one time)'
community
____________ eat animals that have already died
scavengers
fleas or ticks living on your dog is an example of which symbiotic relationship?
parasitism
We know that the sun transfers energy to plants so they can make food based off which law of thermodynamics?
the first law of thermodynamics
Biosphere and Atmosphere
Which level of organization has everything that is in a community plus abiotic factors
ecosystem
____________ break down dead and decaying matter into simpler molecules that can be absorbed
decomposers
a tree frog using a plant as shelter is an example of which symbiotic relationship?
commensalism
How much energy is transferred from one level of the food pyramid to the next?
10%
Bacteria that live under a rock in the ocean floor show the interaction between which 3 spheres of the earth?
biosphere, hydrosphere, geosphere
List the 6 levels of ecological organization from smallest to largest
individual, population, community, ecosystem, biome, biosphere
Define herbivores, carnivores, and omnivores
herbivore- eats plants only
carnivores- eats animals only
omnivores- eats both plants and animals
an owl hunting mice to eat is an example of which symbiotic relationship?
predation
grass --> grasshopper ---> frog --> snake
Which organism is the secondary consumer?
frog