Random
Species Relationships
Matter/Energy in Ecosystems
Nutrient Cycles
Succession
Population Dynamics/Biomes
Population Dynamics/Biomes
100
What do the arrows represent in a food web?
energy flow
100
What is the difference between a Herbivore and Omnivore?
Carnivores= eat meat and other animals
Omnivores = eat both plants and animals
100
simple and linear model that shows how matter & energy move through an ecosystem
food chain
100
The process when water evaporates from plants
transpiration
100
The maximum number of individuals an ecosystem can support
carrying capacity
200
Refers to the role an organism has in an ecosystem
Niche
200
Organisms that break down dead matter
decomposers
200
Organisms that make their own food via photosynthesis
autotroph/producer
200
Formation of fossil fuels is part of this cycle
carbon cycle
200
Which two factors determines a biome?
temperature and precipitation
300
What is the carrying capacity of the deer population?
10,000 deer
300
A tree provides a habitat for lichen, allowing it to receive ample sunlight. What is the symbiotic relationship?
commensalism
300
Name a primary consumer in the food web
Rabbit, mouse, or grasshopper
300
What is living on plant roots and is responsible for changing nitrogen into different forms?
bacteria
300
Limiting factor that does not depend on the number of members in a population
density independent
400
Process of converting nitrate into nitrogen gas
denitrification
400
permanent, close association between two or more organisms of different species
symbiosis
400
How much energy is lost after each tropic level and how is the majority lost?
90% and as heat
400
Where and in what form is the majority of carbon found?
carbon dioxide in the atmosphere
400
What does a graph show when the growth rate is proportional to the size of the population (a J curve)?
exponential growth
500
Increasing a chemical concentration through a food chain
biomagnification
500
This is formed by several interacting populations
community
500
Does the top or bottom of an energy pyramid contain the least amount of available energy?
top
500
Results from too much nitrogen getting into the water causing algae blooms
eutrophication
500
stable, mature community
climax community