Spheres of the Earth
Ecology and organization
Obtaining energy
Organism relationships
Food web/pyramid
100

Which sphere of the earth is made of all the water that is on the earth's surface, underground, and in the air?

Hydrosphere

100

What is the difference between biotic and abiotic factors

biotic-living things

abiotic- nonliving things

100

__________ depend on autotrophs for energy

heterotrophs/producers

100

define mutualism

a relationship where both organisms benefit

100

What is a more accurate representation of feeding relationships? Food chains or food webs?

Food webs

200

Which sphere of the earth is made of rocks, minerals, and soil?

Geosphere/lithosphere

200

________ is the unique role a species plays in the environment

niche

200

__________  obtain energy from the sun or chemical compounds

autotrophs/producers

200

define commensalism

one organism benefits and the other is unaffected

200
The top of a food pyramid has the ________ amount of organisms, while the bottom of the pyramid has the _________ amount of organisms.

least; most

300

What is the frozen part of the hydrosphere called?

cryosphere

300

Which level of organization is defined as 'interacting populations (many species together at one time)'

community

300

____________ eat animals that have already died

scavengers

300

fleas or ticks living on your dog is an example of which symbiotic relationship?

parasitism

300

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

400
When a cow eats and digests grass and breathes out CO2 into the air, which two spheres are interacting?

Biosphere and Atmosphere

400

Which level of organization has everything that is in a community plus abiotic factors

ecosystem

400

____________ break down dead and decaying matter into simpler molecules that can be absorbed

decomposers

400

a tree frog using a plant as shelter is an example of which symbiotic relationship?

commensalism

400

How much energy is transferred from one level of the food pyramid to the next?

10%

500

Bacteria that live under a rock in the ocean floor show the interaction between which 3 spheres of the earth?

biosphere, hydrosphere, geosphere

500

List the 6 levels of ecological organization from smallest to largest

individual, population, community, ecosystem, biome, biosphere

500

Define herbivores, carnivores, and omnivores 

herbivore- eats plants only

carnivores- eats animals only

omnivores- eats both plants and animals

500

an owl hunting mice to eat is an example of which symbiotic relationship?

predation

500

grass --> grasshopper ---> frog --> snake

Which organism is the secondary consumer?

frog