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the relationship between species and abiotic factors in an ecosystem
a. ecosystem
b. photosynthesis
c. food chain
ecosystem
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an organism that uses the sun's energy to make its own food
a. consumer
b. producer
c. decomposer
producer
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the ability of producers to make their own food
a. ecosystem
b. bioamplification
c. photosynthesis
photosynthesis
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what is the formula for photosynthesis
energy + carbon dioxide + water -> glucose + oxygen
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the opposite reaction to photosynthesis, converting oxygen into carbon dioxide, water and energy
a. cellular respiration
b. bioamplification
c. denitrification
cellular respiration
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what is the formula for cellular respiration
glucose + oxygen -> energy + water + carbon dioxide
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animals that consume other animals for energy
a. producer
b. consumer
c. carnivore
consumer
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organisms that recycle dead or decaying matter back into usable components
a. consumer
b. producer
c. decomposer
decomposer
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an animal that feeds on other animals
a. carnivore
b. herbivore
c. omnivore
carnivore
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an animal that eats plants
a. carnivore
b. herbivore
c. omnivore
herbivore
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an animal that eats plants and animals
a. carnivore
b. herbivore
c. omnivore
omnivore
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a way of categorizing animals of how they gain their energy
a. trophic level
b. food chain
c. food web
trophic level
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a step-by-step sequence showing a community of organisms where each animal is eaten by another animal
a. trophic level
b. food chain
c. food web
food chain
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a picture representing the feeding relationships among organisms in an ecosystem
a. trophic level
b. food chain
c. food web
food web
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the formation of nitrates
a. nitrogen fixation
b. denitrification
c. bioamplification
nitrogen fixation
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what are 3 ways that inorganic nitrogen is fixed into nitrates
- fixed from lightning
- fixed from bacteria in roots of legumes
- fixed from bacteria that convert animal waste
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what is the formula for nitrogen fixation
ammonia -> nitrites -> nitrates
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the process by which bacteria who convert nitrites into nitrates
a. nitrogen fixation
b. denitrification
c. bioamplification
denitrification
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what is the formula for denitrification
nitrate -> nitrite -> nitrogen gas
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the build up of toxins as you move up the a food chain
a. nitrogen fixation
b. denitrification
c. bioamplification
bioamplifications
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what are fertilizers made of
nitrates and phosphate
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can dissolve in water, plants can easily take in this element and pass it up the food chain
a. phosphate ion
b. calcium carbonate
c. bioamplification
phosphate ion
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formed to make shells and other body parts in aquatic organisms
a. phosphate ion
b. calcium carbonate
c. bioamplification
calcium carbonate
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why would a water source contaminated with nitrates or nitrites have to be treated before drinking
- -can cause harmful reproductive and develepmental effects
- -can seriously affect the blood's ability to relase oxygen
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what are two reasons a farmer might consider other alternatives prior to chemical fertilizers
- -prevent contaminating water
- -prevent soil contamination
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how do algal blooms eventually contribute to the death of waterways
when algae die, bacteria use oxygen from the water to decompose them, as oxygen levels drop, fish and other animals die and the bacteria take more oxygen,
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the destruction of a natural ecosystem either by humans or by natural disasters
- a. nitrogen fixation
- b. denitrification
- c. ecosystem degradation
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what are 5 ways we can stop ecosystem degradation
- -protect our land and water resources
- -reduce pollution
- -don't build on arable land
- -avoid over fishing and meat consumption
- -stabilize human population growth
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considers your lifestyle and resources used to calculate how much space on the planet you need to sustain life
a. ecological footprint
b. bioamplification
c. food web
ecological foorprint
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imagine a simple food chain that include energy source, producer, primary consumer, secondary consumer and decomposer
water and sun > grass > grasshopper > snake > hawk > fungi >grass
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why are plants essential to all ecosystems
- -they start off all food chains
- -release oxygen
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what are 3 kinds of ecological footprints
- pyramid of energy
- pyramid of biomass
- pyramid of number
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what are the 6 abiotic factors
- temperature
- the greenhouse effect
- energy
- soil
- water
- atmosphere
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why is the greenhouse effect considered bad
it increases the carbon dioxide level and causes global warming
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why is the greenhouse effect considered good
without it the earth would be too cold to sustain life
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what are ways that burning fossil fuels can negatively impact the environment
- -increases the amount of carbon dioxide
- -traps heat in our atmosphere
- -ecosystems are damaged in order to gain access to them
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why does the amount of available energy decrease as trophic level increases
only 10% is transferred from the producer to the primary consumer, this amount of energy continues to decrease up the trophic levels
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what are the main components of the carbon cycle (7)
- photosynthesis
- cellular respiration
- organic carbon
- carbon dioxide
- dead tissue and waste
- fossil fuels
- calcium carbonate
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what are 2 ways that humans are disrupting the balance in the carbon cycle
- cars and factories releasing carbon dioxide
- degrading ecosystems
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what are the main components of the phosphorus cycle
- phosphate rock
- phosphate ions in water
- phosphates in animals
- decompose
- phosphate runoff to oceans
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