Living and Surviving
What does biotic mean? Give 2 examples.
Biotic means living. Examples can be anything that is alive.
What do a carnivore and herbivore eat? Give an examples of each.
Carnivore eats meat and Herbivore eats plants. Examples will vary.
What is a renewable energy?
Any energy that can be replenished over months, years, or decades.
What is a nonrenewable energy?
Any energy that takes an extremely long time to replenish after being used.
What is a fossil fuel?
A energy source that comes from decayed plant or animals that was buried underground for millions of years.
What is an ecosystem?
An ecosystem is a community of living and non-living organisms working together.
Is energy transfer from animal to animal efficient or inefficient? What percent of energy is transferred when you eat something?
Inefficient because only 10% of energy is transferred.
Give 2 examples of renewables and how the energy is gathered from them.
Answers may vary.
What are the 3 ways we mine for coal?
Surface mining, underground mining, and mountaintop removal
Give 2 reasons why carbon is an important element.
Building block of life and energy source.
What is biodiversity?
It's the genetic variation within a population.
What is an invasive species?
It's an animal the invades an area that it's not native to and causes issues.
What is the by-product of fuel cells and a con to using fuel cells?
Water is the by-product and they are expensive and flammable.
What is the alternative to dwindling oil supplies?
Tar sands and oil shale.
Why do most people prefer to use fossil fuels?
Because they are cheap
Why is biodiversity important?
It gives a larger variety of things to live off of and survive with.
How would a global decrease in plant diversity affect the biosphere?
There would be a decrease in the amount of animals.
Why are most renewables not used?
Because they're expensive.
What nonrenewable is gathered using the fracking process?
Natural Gas
What issues would the introduction of a non-native plant cause in NC?
It would take over the area and kill other plants.
Why is it important to plant more than 1 variation of a crop?
Because if you only plant 1 type it's more vulnerable to pathogens (viruses and diseases).
Compare food chain and food web.
A food chain is a single path of energy and a food web is multiple food chains put together.
Describe what happens during nuclear fission.
It's a controlled chain reaction by splitting an atom.
What are 2 issues with fracking?
Can cause toxins to get into water supplies and leftover gas can be wasted or get into water supply.
As time goes on what will happen to fossil fuel supplies?
They will decrease and eventually run out