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Vocabulario
Mono Lake
N R G
Plastic Paradise
You're So Random!
100
What is a "food web?"
A diagram showing the feeding relationships in an ecosystem.
100
What direction do arrows point in a food web. Why?
Arrows point going up the food web. This is because it demonstrates the flow of energy in a system.
100
What do we call the group of organisms that take light from the sun and turn it into consumable energy?
Producers.
100
Why was plastic originally made?
A cheap alternative to fabrics for WWII.
100
What is one consequence of global climate change?
1) Planet is warming 2) Ice caps melting 3) Oceans becoming more acidic 4) Sea Level Rising 5) Mass extinctions
200
This is the name of different levels of energy in an ecosystem.
Trophic levels.
200
Where is Mono Lake located?
California.
200
What is the ONLY way to get more energy?
Eating.
200
What makes plastics so unique (compared to other materials)?
They never break down.
200
How much energy is lost each trophic level?
90%
300
This is what we call the organisms that "break down" other organisms after they die. These organisms are found in the soil.
Decomposers.
300
What did humans do at Mono Lake to "throw off" the ecosystem?
They diverted fresh-water rivers away from Mono Lake. As a result, salinity of the lake increased drastically. Water level dropped significantly.
300
What other ways besides eating can you obtain energy?
NONE!
300
Why is recycling not the solution for reusing plastics?
Only certain kinds of plastic can be recycled.
300
What molecule do plants breathe out?
Oxygen.
400
What word describes the process plants use to produce consumable energy?
Photosynthesis.
400
Would primary consumers most likely be herbivores (eat only plants), omnivores (eats both plants and animals), or carnivores (only eat animals)?
Herbivores.
400
What 3 things do plants need in order to produce energy?
1) Sunlight 2) Carbon Dioxide 3) Water
400
How can abandoned nylon fishing nets affect an ocean ecosystem?
They trap organisms and kill them. They also roll around the sea, ripping up coral as they go.
400
What word describes toxins building up and passing through trophic levels.
Bioaccumulation.
500
Name 4 of the 5 characteristics of living organisms.
1) Made of cells 2) Must use and obtain energy 3) Must grow 4) Must reproduce 5) Adapt to their environment
500
If Lake Macbride begins seeing a huge decline in algae and water plants, how will this affect the ecosystem. Be SPECIFIC.
There will be a competition for food and not as many consumers will be able to eat, so many organisms would die.
500
At Mono Lake, a california gull is a secondary consumer. If the gull wanted to ONLY eat algae (producer) how much algae will it have to consume in order to sustain its biomass?
100x its biomass in algae
500
What are two ways plastics are dangerous for an ecosystem?
1) Trap animals 2) Kill plants 3) Release harmful chemicals etc.
500
Tommy says that the toxins humans dump into lakes is not a big deal. He claims that the "10% rule" will decrease the amount of toxins travelling in a food web will decrease by 90% at each new trophic level. Is Tommy's thinking correct or incorrect. Explain.
Most toxins do NOT break down, even when passing to new trophic levels. In fact, since consumers MUST consume 10x their biomass, they are accumulating 10x the amount of toxins at each new trophic level.