all the parts parts of the planet that are inhabited by living things; sum of all Earth's ecosystems
community of living things plus the non-living features of the environment that support them
all the organisms living in an area
group of individuals of the same species living in a particular area at the same time
unit of multiple organs that together perform a vital body function
unit consisting of several systems that togeether performa a specific task
cooperating unit of many similar cells that perform a specific function
basic unit of livign matter
smallest to largest
cell, tissue, organ, organ system, organism, population, ecosystem, biosphere
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
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.
Your microphone is muted
For help fixing this issue, see this FAQ.