The answer is C since heterotroph means they don't have a way of making food
1. P (because the tick is benefited but the dog isn't.)
2. M (because both organisms are benefited.)
3. P (the tapeworm is benefited but the student isn't.)
4. C (because the bird's nest is benefited and the tree is not harmed)
5. C (the hermit crab needs the sea anemones and the sea anemones is not harmed)
But yeah I gave you a few examples of (P, M, and C), so you should figure it out now.
6. C
7. P
8. M
The most active geothermal resources are usually found along major tectonic plate boundaries where most volcanoes are located. One of the most active geothermal areas in the world is called the Ring of Fire, which encircles the Pacific Ocean.
When magma comes near the earth's surface, it heats ground water trapped in porous rock or water running along fractured rock surfaces and faults. Hydrothermal features have two common ingredients: water (hydro) and heat (thermal).
Geologists use various methods to find geothermal reservoirs. Drilling a well and testing the temperature deep underground is the most reliable method for locating a geothermal reservoir.
A)formed from repeated non-explosive eruptions of flowing lava