Create an account
one organism benefits (is happy) and one organism is not harmed or helped (is neutral meaning it doesn't really care)
All viruses cause diseases such as
AIDS (from HIV which infect the helper T cells), colds, warts, smallpox, flu (influenza)
living (eubacteria or archebacteria kingdom), can be harmful or beneficial, examples: strep throat, staph infections
aid in digestion, food making (cheese, yoguar), drugs (inculin), decompose and recycle nutrients
4th Level Tertiary Consumers (less energy then 3rd level)
3rd Level Secondary Consumers (less energy then 2nd level)
2nd Level Primary Consumbers (less energy then 1st level)
1st Level Producers (maximum amount of energy)
food energy pyramid
shows what happens to energy in an ecosystem as it flows from one organism to another, top of pyramid less energy, bottom of pyramid more energy (plants are at the bottom)
evidence of change in a species
fossil record, DNA, anatomical similarities (similar body parts), physiological similarities, embryology
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together