Vocabulary
break down matter and return nutrients to the soil
decomposer
living parts of an ecosystem
biotic factors
What 3 resources do all organisms need?
food, water, shelter
when plants use energy from the sun to make sugars
photosynthesis
pathway the energy and nutrients follow through an ecosystem
food chain
a single organism
individual
What are two types of factors that affect resource availability?
environmental and competition
cells of plants that capture light energy
chloraplasts
all the living and non-living parts of an environment
ecosystem
nonliving parts of an ecosystem
abiotic
occurs when resources are in abundance so the population grows
exponential growth
process that uses oxygen to release energy stored in food molecules
cellular respiration
eats other animals
consumer
a group of individuals of the same species that live in the same place at the same time
population
Name an environmental factor that affects population growth
wildfires, drought
eats only plants
herbivore
represents energy available at each level of a food web
energy pyramid
made up of all the different species that live and interact in an area
community
growth slows as the population reaches maximum size due to limited resources
logistic growth
Name the missing piece to the water cycle: precipitation, evaporation,
condensation