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2016-17 Unit 4 (Ecosystem Energy & Nutrients) Flashcards | StudBud
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2016-17 Unit 4 (Ecosystem Energy & Nutrients)
2016-17 Unit 4 (Ecosystem Energy & Nutrients)
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Ecosystems - Unit 3 #biology #ecosystems #trophicenergytransfer
Flashcards
42 cards
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Practice quiz
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Host live
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Questions
42
Answers
1
What role do decomposers play in an ecosystem?
Break down nutrients
Destroy and rebuild ecosystems
Highest level consumers
Provide energy
2
What are three important abiotic factors?
Photosynthesis, respiration, osmosis
Decomposers, Producers, Consumers
Earth, Wind and Fire
Sunlight, water, temperature
3
Which living organisms have carbon in them?
Only dead stuff has carbon
All of them!
No - none!
Only some do.
4
What is the CELL RESPIRATION equation?
C6H12O6 + 6O2 ---> 6H2O + 6CO2 + sunlight energy
C6H12O6 + 6O2 ---> 6H2O + 6CO2 + ATP energy
6H2O + 6CO2 + sunlight energy ---> C6H12O6 + 6O2
6H2O + 6CO2 + ATP energy ---> C6H12O6 + 6O2
5
In order to limit the worst consequences of global warming, temperature can only rise up to...
4 degrees C higher
2 degrees C higher
6 degrees C higher
8 degrees C higher
6
Carbon dioxide molecules in the atmosphere ....
Turn into clouds
Block sunlight
Absorb and re-emit heat
Cool the planet
7
What is the role of producers in an ecosystem?
Provide the nutrients
Bring energy into the ecosystem
Recycle nutrients for the ecosystem
Consume energy from simpler organisms
8
There is a sealed room full of seals. Over time the O
2
level in the air will...
Go down
Fluctuate up and down in cycles
Go up
Stay the same
9
If a single plant was left in a small air-tight room with light, what would happen right away?
Oxygen in the air would rise
Carbon dioxide in the air would rise
Methane in the air would rise
Water in the air would decrease
10
Paraphrasing means
Summarize in your own words, cite the source
Copy a friend, turn it in with a smile
Change a few words, cite the source
Quote the source, cite the source
11
Plants have 45,000 kcal of energy. How many kcal are in SECONDARY CONSUMERS?
45 kcal
450 kcal
450,000 kcal
4500 kcal
12
How are the energy flow and chemical nutrient cycle of ecosystems different?
Chemical nutrients cannot be recycled
Energy cannot be recycled
Nutrients don't cycle into abiotic things
Energy doesn't flow into abiotic things
13
In a coral reef ecosystem, which of the following is abiotic?
Coral organisms
Sand
Eel
Sea star
14
What is the PHOTOSYNTHESIS equation?
C6H12O6 + 6O2 ---> 6H2O + 6CO2 + sunlight energy
6H2O + 6CO2 + ATP energy ---> C6H12O6 + 6O2
6H2O + 6CO2 + sunlight energy ---> C6H12O6 + 6O2
C6H12O6 + 6O2 ---> 6H2O + 6CO2 + ATP energy
15
Which of these is global warming LEAST likely to rapidly change?
Organisms' DNA
Global temperature
Ocean levels and chemistry
Weather patterns and intensity
16
When in history did the "Greenhouse effect" BEGIN to become a problem?
World War 2 (1930s-40s)
The invention of cars (1900s)
When Homo sapiens began (2 million years ago)
The Industrial Revolution (1700s)
17
Prokaryotes are ...
Eukaryotic
Abiotic factors
Gross!
Biotic factors
18
Which type of cells have MITOCHONDRIA?
Prokaryotic cells ONLY
BOTH plant and animal cells
Animal cells ONLY
Plant cells ONLY
19
To convert decimeters to hectometers...
Multiple decimeters by 1000
Divide decimeters by 1000
Divide decimters by 100
Multiple decimeters by 100
20
Where does MOST of the energy "go" as it moves up a trophic pyramid?
LOST as heat to the environment (organisms survival energy)
Passed on to higher level consumers
Recycled back to producers
Absorbed from dead bodies by decomposers
21
What is the biggest source of carbon release into the atmosphere?
Trees
Cell respiration
Humans causes
Ocean
22
Which human-created activities affect the level of CO
2
in the atmosphere?
Factory gas releases
Farm animal feces and farts
Vehicle exhaust
Deforestation
23
Convert this: 20 kCal to Calories
0.002 Calories
2,000 Calories
20,000 Calories
200,000 Calories
24
A bug is an example of a(n) ...
Primary producer
Abiotic factor
Nutrient flow
Biotic factor
25
Bird eats grass seeds, cat eats bird, dog eats cat. Dog's ECOSYSTEM ROLE is...
Decomposer
Tertiary consumer
Secondary consumer
Primary consumer
26
Which of these is a biotic factor?
Air
Water
Plants
Sand
27
Which of these is an INPUT of cell PHOTOSYNTHESIS?
oxygen gas
ATP (usable cell energy)
carbon dioxide gas
sugar
28
What turns biotic chemicals back into abiotic nutrients?
Decomposers
Herbivores
Producers
Carnivores
29
Every time energy moves up the trophic pyramid, how much energy is LOST?
25%
90%
10%
50%
30
How does photosynthesis impact the carbon cycle?
It increases carbon in the atmosphere
It decreases oxygen in the atmosphere
It decreases carbon in the atmosphere
It uses up fossil fuels
31
Which of these is NOT a result of global warming?
Fewer extreme climate events
Melting ice and glaciers
Warmer oceans
Record-setting high temperatures
32
Which trophic level can eat carnivores?
Producers
Tertiary consumers
Primary consumers
Secondary consumers
33
What group of organisms make up level of the trophic pyramid right above the bottom level?
Plants
Herbivores
Omnivores
Carnivores
34
What are secondary consumers?
Photosynthesizers
Decomposers
Herbivores
Carnivores
35
What is organism waste and the remains of dead organisms called in Biology?
Gross!
Biomass
Detritus
Biota
36
Which of these would INCREASE global atmospheric carbon dioxide?
Using more nuclear power
More people living like the US population does
Driving cars less
Eating a vegetarian diet
37
Convert this: 1 kilometer to grams
100 grams
Can't
0.001 grams
1000 grams
38
What does "Bio" mean?
Awesome class
Science
Ecosystem
Life
39
What is a trophic level?
The mass of a group of organisms
A group of organisms that live in the same area
Organisms that have the same energy available to eat
An ecosystem
40
Which of the following is NOT a greenhouse gas?
Methane
Water vapor
carbon dioxide
Oxygen
41
Which of these is an INPUT of cell RESPIRATION?
oxygen gas
carbon dioxide gas
water
ATP energy (usable cell energy)
42
How might a further rise of global average temperature of 2 *C affect our lives?
Reductions in food crop success
Loss of many species
Increased rain and flood risks
Increases in wildfires
