Ecosystems
An animal would release _________ which would be used by plants.
What is carbon dioxide?
Which cycle includes the activity of bacteria on the roots of plants?
What is the Nitrogen Cycle?
TPositive or negative - People planted native plants in their yard, and butterflies began to lay more eggs.
What is positive?
The largest number of organisms in the energy pyramid are located in the bottom row, they are _________.
What are producers?
A producer is an __________, and it uses the sun to make energy.
What is an autotroph?
Biotic factors of a pond include _______________.
What are all the living things?
What cycle involves the transpiration?
What is the Water cycle?
Positive or negative - A person poured old motor oil on the yard, it was absorbed by the soil.
What is negative?
As you move up the trophic levels you only pass along _____ of the energy to the next level.
What is 10%?
If decomposers are removed from the food chain, the _______________________ would be disrupted.
What are nutrient cycles?
The loss of ______ impacts the biodiversity of an ecosystem.
What are plants?
This cycle uses lighting and bacteria to convert it into a usable form.
What is the Nitrogen cycle?
What is negative?
A ________ shows the relationship between different organisms and more accurate than a food chain.
What is a food web?
_______ is the building block of all life.
What is carbon?
An ecosystem includes both the biotic and ________ factors.
What is abiotic?
The burning of fossil fuels is part of this cycle.
What is the Carbon cycle?
Positive or negative - A fisherman catches 15 fish, he keeps 2 and throws the rest back.
What is positive?
The levels of consumers are _______, secondary, and tertiary.
What are primary?
What can disrupt food chains and nutrient cycles?
What is deforestation?
Pollution, burning of fossil fuels, deforestation and releasing chemicals into the air, soil and water all destroy an ecosystem. This is caused by ________.
What are humans?
Used during photosynthesis in the form of glucose.
What is the Carbon cycle?
Human burn fossil fuels which increases the ozone layer, this is referred to as _________________.
What is global warming?
Populations between trophic levels ________ as you move up the energy pyramid.
What is decreases?
The soil in the rain forest is low in minerals and nutrients because of the _________________.
What is the abundant plant life?