Vocabulary
Living things
biotic factors
Nonliving things
Abiotic factors
What is biodiversity?
variation in organisms
What is the energy source for all food webs and food chains?
Sun
What is the scientific term for cutting down trees?
deforestation
Organisms that make their own food
Producer
Another term for Producer
Which organisms starts all food webs and food chains?
Producers
How much energy is pass from one trophic level to another?
10%
What are some positive ways that humans can impact the environment?
cleaning up trash, recycling, replanting trees..
Organisms that eat to get energy
Consumers
The job that an organisms does in a specific habitat
Niche
Name the four types of consumers
Carnivore
Herbivore
Omnivore
Scavenger
What is the difference between an autotroph and a heterotroph?
Autotrophs make their own food, heterotrophs eat to get energy
Which gas causes the global temperatures to increase?
Carbon Dioxide
Increased temperatures due to human activity
Global Warming
Breaks down dead organisms and returns the nutrients back into the environment
List three limiting factors
Water
space/shelter
what is the difference between a scavenger and a decomposer?
scavenger uses the energy from the dead organisms that it eats while decomposers recycles some of the nutrients back into the ecosystem.
Name two ways that humans contribute to global warming.
Deforestation
Burning Fossil fuels
Max amount of a specific organisms that can live in a area
Carrying Capacity
Factors that determine the population size
Limiting factors
Why do organisms at the top of an energy pyramid need to eat more food than the organisms at the bottom of the energy pyramid?
They only get 0.1% of energy from the food they eat.
What is biomagnification?
when toxic substances are introduced into an ecosystem they increase as they move up the food chain. The top consumers get exposed the the largest amount of the toxic substance
What is an invasive species? How is is harmful?
a species that is brought into an ecosystem from a different ecosystem/country. They are harmful because they do not have any predators.