Name the interaction in each case, and write its signs…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Name the interaction in each case, and write its signs.
- A tick on a dog.
- A lichen.
- Barnacles on a whale.
- Cuscuta on a hedge plant.
- A fig tree and its own wasp.
- Flamingoes and fish that eat the same zooplankton.
Need a reminder? The key ideaShow
Parasitism (+, −), commensalism (+, 0), amensalism (−, 0), mutualism (+, +), competition (−, −), predation (+, −).
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) Parasitism (+, −).
Step 2. (b) Mutualism (+, +).
Step 3. (c) Commensalism (+, 0).
Step 4. (d) Parasitism (+, −).
Step 5. (e) Mutualism (+, +).
Step 6. (f) Competition (−, −).
Answer: (a) parasitism; (b) mutualism; (c) commensalism; (d) parasitism; (e) mutualism; (f) competition.
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