"How could you decide if an ecosystem is healthy or not? "
the Nucleus
They dont have cell walls
You can tell if an onion cell is alive by observing its turgidity and color. Live onion cells are turgid, meaning they are firm and full of water, giving them a healthy green color. Dead onion cells will appear shriveled, discolored, and lack turgidity. You can also perform a simple plasmolysis test to determine cell viability.
thermometer barometer weather vane rain gauge
how can you tell when a weather change is coming
EITHER BLUETOOTH OR WEATHER
meteorologists tell the weather by looking at the sky because of the clouds. Every cloud could tell the weather. Different types of clouds tell different weathers.
bbc weather
"How could you decide if an ecosystem is healthy or not? "
a tool is a barometer
It will tell you which way the wind is blowing
Caca
There is a nucleus
so they can tell everybody the weather!
It can tell you if your ugly or not.
yes