3.1
3.2
3.3
3.4
Random
100
All organisms that live in a place together with their physical environment.
ecosystem
100
Autotrophs are also called...
Primary Producers
100
Many food chains make up a...
Food Web
100
Matter is recycled and energy flows in a ____- way system
one
100
If an animal is both an herbivore and a carnivore, what is it called?
An omnivore
200
All organisms that live in a place together with their physical environment.
populations, community
200
What is the difference between photosynthesis and chemosynthesis?
Photosynthesis converts sunlight into energy-rich carbohydrates and chemosynthesis converts chemical energy into carbohydrates.
200
What is the difference between zooplankton and phytoplankton?
Phytoplankton is algae found near the surface of the ocean, while zooplankton are small swimming animals that eat algae
200
What processes does the cycle of matter involve?
biological, geological, chemical
200
Each step in a food chain or food web is called a...
trophic level
300
What three methods are used by ecologists in their studies of life on earth?
Observation, experimentation, modeling
300
Why do some organisms use chemosynthesis over photosynthesis?
Organisms use chemosynthesis over photosynthesis when light isn’t available
300
What are the three types of ecological pyramids?
Pyramids of energy, pyramids of biomass, and pyramids of numbers.
300
Water n the water cycle moves through..
oceans, the atmosphere, and land
300
Cycles that move carbon, nitrogen, and phosphorus are ______ cycles
nutrient
400
What is the difference between a biotic factor and an abiotic factor?
A biotic factor is any living part of the environment which an organism may interact with while an abiotic factor is any non-living part of the environment.
400
What is the difference between carnivores and herbivores?
Carnivores kill other animals and eat them, herbivors eat plants
400
The amount of living tissue in a given trophic level is called..
biomass
400
In nitrogen fixation, bacteria convert nitrogen into what gas?
ammonia
400
Earth is often described as a "_____-based life"
carbon
500
Give an example of a biotic factor and an abiotic factor.
abiotic- sunlight, heat, precipitation, wind biotic- how organisms react (animals, plants, mushrooms, bacteria)
500
What is the difference between autotrophs and heterotrophs?
autotrophs make food themselves usually through photosynthesis, and heterotrophs rely on other sources for their food
500
____convert dead material into detrius which is eaten by ____.
Decomposers, detrivores
500
Give an example of a biological process
eating, breathing, eliminating waste products, etc.
500
How many steps are in this food chain? grass---grasshopper---mouse---owl
3
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