Relationships
Two wolves fighting for territory is called what?
Competition
True or False. In an energy pyramid, the organism at the bottom has the most energy and the organism at the top has the least.
True
What is the Carbon-Oxygen Cycle?
The process where carbon and oxygen is cycled throughout the environment
A fish in the ocean.
Biotic
A biological community of interacting organisms and their physical environment.
Ecosystem
A coyote stalks a rabbit and eats it. What type of relationship is this?
Predation
How does energy get passed through an ecosystem?
By organisms eating other organisms inside the ecosystem.
What is the Nitrogen Cycle?
The process where nitrogen is cycle through the environment and organisms.
How are abiotic and biotic factors different?
Biotic factors are living and abiotic are not living.
A nonliving factor in an ecosystem that affects the ecosystem and the organisms inside of it.
Abiotic Factor
A mosquito lands on your arm and drinks some of your blood. What type of relationship is this?
Parasitism
What are the three energy roles that an organism can play in an ecosystem and an energy pyramid
Producer, consumer, and decomposer
Where do most of the nitrogen fixing bacteria live?
The soil
What do all living things need to survive?
Shelter, Food, Water, Air, and Space
A large naturally occurring community of flora and fauna occupying a major habitat
Examples: forest or tundra.
Biome
An ant crawls on you and gets a ride. What kind of relationship is this?
Commensalism
What is the difference between a food chain and a food web?
A food chain displays a single sequence of organisms where energy is passed and a food web is many interlocking food chains.
How does the Oxygen-Carbon Cycle work?
Animals breathe out carbon dioxide during respiration and plants use that carbon dioxide to make energy for themselves and oxygen, which animals breathe in.
Is human influence considered an abiotic or a biotic factor?
A biotic factor
The match of a species to an environmental condition that describes how the species reacts to the distribution of resources.
Niche
Why would a parasite not kill its host?
If the parasite kills its host, it cant uses the host to get nutrients and to survive.
What is the amount of energy at each trophic level of the energy pyramid?
It decreases as you get closer to the top of the pyramid and less than 10% of energy is transferred to each level of the pyramid
How do human activities (factories, urbanization, etc.) affect the carbon-oxygen cycle?
When we use fossil fuels it makes more carbon dioxide and that throws the carbon-oxygen cycle off balance.
Give three examples of abiotic factors in an aquatic ecosystem
Water currents, temperature, and sunlight
The factor that restricts the population of an ecosystem.
Limiting Factor