Characteristics of Life & Levels of Organization
True or false: A leaf is living.
true
Is water a biotic or abiotic factor?
abiotic
The scientific name for the organism a predator eats
Prey
Every food web and energy pyramid begins with this trophic level
producer
True or false: When writing a CER, the claim should include an explanation.
False
Is a virus biotic or abiotic?
abiotic
Define biotic factor and give an example.
a living factor (ex. any living thing)
the name of the ecological relationship of a consumer eating another organism
Predation
the amount of energy transferred between each trophic level
10%
the best type of graph to represent change over time
A line graph
What is the largest level of organization (not including the biosphere)?
a biome
Limiting factors determine this number for a particular population.
the carrying capacity
About 39 trillion bacteria live inside the body of every human. The bacteria can use the excess nutrients found within the gut, while also helping the human digest their food.
What kind of relationship do the humans and bacteria have? Explain.
Mutualism because both benefit (bacteria get a home & nutrients; humans get help digesting food)
Give the definition of an herbivore, omnivore, and carnivore.
Herbivore - only eats plants
Omnivore - eats plants and meat/animals
Carnivore - eats only meat/animals
This biome has the highest biodiversity compared to other biomes
What is the difference between a population and a community?
A population is a group of one species in an area. A community is all the living things in an area (more than one species).
This type of ecological relationship when two organisms fight over resources is also a biotic limiting factor for both populations
Competition
Define commensalism
a relationship when one organism benefits and one is unaffected
The arrow in a food web represents...
energy transfer
This thick pine forest biome can be found across the Northern US, Canada, Northern Europe, and Siberia (Russia)
Taiga/Boreal Forest
List all six characteristics of life.
Cells, Reproduction, DNA, Responds, Uses Energy, Growth & Development
What happens when a population goes above its carrying capacity and why?
death/starvation due to lack of resources
In which type of symbiosis is one organism hurt, and what is an example of this relationship?
Parasitism (ex. Cordyceps & insects)
List the trophic levels of an energy pyramid starting with the bottom and moving up.
producer, primary consumer, secondary consumer, and tertiary consumer
Which biome can be found at the north and south pole?
Desert (Polar Desert)