Food Chains
What do Primary Consumers eat?
Producers or plants
What is a food web?
Multiple food chains showing the flow of energy and how everything is interconnected.
What is the process by which water changes from a liquid to a gas?
Evaporation
What is the main gas involved in the carbon cycle?
Carbon Dioxide (Co2)
78%
Is how much of the earths atmosphere is made up of Nitrogen.
What is a close, long-term relationship between two species that usually involves an exchange of food or energy?
Symbiosis.
In the food chain, what is an organism that eats both plans and animals called?
Omnivore
What do the arrows in a food web represent?
The flow of energy from one organism to another.
What is the process by which water vapor cools and turns into liquid droplets?
Condensation
How do plants take in carbon from the atmosphere?
Through photosynthesis.
What process converts nitrogen gas into a form that plants can use?
Nitrogen Fixation
What is a symbiotic relationship that benefits one species, but does not harm or benefit the other?
Commensalism
If a fox eats a rabbit, what role does the fox play in the food chain?
Secondary consumer or predator
In a food web, what type of organism breaks down dead plants and animals?
Decomposers
Name 4 forms of precipitation.
Rain, snow, sleet and hail
What process do animals and plants use to release carbon dioxide back into the atmosphere?
Cellular Respiration
What type of organism is responsible for nitrogen fixation?
Bacteria in the soil.
What is the symbiotic relationship in which both partners benefit?
Mutualism
What is the first organism in a food chain called?
Producer
Why is a food web more accurate than a simple food chain for describing an ecosystem?
Because most organisms eat more than one type of food, showing multiple paths for energy to transfer.
What is the term where water is evaporated off the leaves of plants and into the atmosphere?
Transpiration
Name one way humans increase carbon dioxide levels in the atmosphere?
Burning fossil fuels.
What kind of animal waste has the most nitrogen?
Chicken
What is parasitism?
A symbiotic relationship that benefits one species and harms the other.
What would happen in a food chain if all of the producers are removed?
The consumers would eventually die off due to a lack of food.
If decomposers were removed from a food web, what would happen to the ecosystem?
Dead organisms would pile up everywhere, leading to a smelly and imbalanced ecosystem.
How does the sun drive the water cycle?
It provides heat energy for the evaporation and helps water through the cycle.
What are two ways carbon can be stored for millions of years?
In fossil fuels and sedimentary layers of rocks.
Why is Nitrogen important for living things?
To help build proteins and DNA for living organisms to grow.
What competition in an ecosystem?
When 2 organisms of the same species compete or fight over food or mates.