Symbiosis
Symbiosis is two kinds of living things living closely together, side by side or one on the other. It comes in three kinds: both gain, as bees and flowers do, or the fungus and the tiny alga that together make a lichen; one gains and the other is neither helped nor harmed, as the cattle egret catching the insects a cow's feet stir up; or one gains and the other is harmed, as a tick sucking a dog's blood. A living thing that feeds on another and harms it is a parasite.
Depth 1 · Foundation
You can sort a close partnership between two living things into its three kinds: both gain, one gains and the other is unharmed, or one gains and the other is harmed (a parasite).
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- 1
Foundation
You can sort a close partnership between two living things into its three kinds: both gain, one gains and the other is unharmed, or one gains and the other is harmed (a parasite).
Your path here
What's still between you and Symbiosis, depth 1, in the order you can learn it.
- 1What animals needDepth 1 · Foundation · Ecology
- 2Living and non-livingDepth 1 · Foundation · Life and Its Variety
- 3Living and non-livingDepth 2 · Deeper · Life and Its Variety
- 4Life processesDepth 1 · Foundation · Life and Its Variety
- 5What plants needDepth 1 · Foundation · Energy for Life
- 6HabitatsDepth 1 · Foundation · Ecology
- 7InterdependenceDepth 1 · Foundation · Ecology
- 8SymbiosisDepth 1 · Foundation · Ecology
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