Unit 7
A species traits change over time
Evolution
As you move up the food chain/pyramid, energy is lost as
Heat!
Using resources in a way that we have enough left for the future
Sustainability
These organisms break down dead organisms
Decomposers
Helpful traits, caused by mutation, meiosis, and fertilization
Adaptations
The maximum amount of species that an ecosystem can support
Carry capacity
Different living things
Biodiversity
An organism that hunts. Ex: shark
Predator
Process in which the best adapted species survives and reproduces
Natural selection
When species fight for food or space
Competition
Write an example of harmful things that humans do, that hurt the environment
Many things: deforestation
burning fossil fuels
using resources too quickly
using too many chemicals/pesticides
What type of organisms always have the most energy in a food web/energy pyramid?
Producers/autotrophs/plants
Similar body parts
Homologous Structures
When plant species and an ecosystem change over time
Ecological succession
More biodiversity =
More stable! Biodiversity is very important
An organism that gets hunted. Ex: bunny
Prey
Species who are related evolve from a...
Common ancestor
Organisms rely on each other for energy and food
Interdependence
The long term shift in temperature and precipitation (rainfall)
Climate change
Abiotic means...
Give 1 example
Non-living
Water, rocks, air, soil, etc.