Answer:
Lichens are not parasitic when they grow on trees, they just use the tree bark as a home. They enrich the soil by trapping water, dust and silt. When lichens die they contribute organic matter to the soil, improving the soil so that other plants can grow there.
Yes, your ear canal is connected to your brain.
Answer is B
Increase the odds by creating relationships among organisms.
Because the sun adds light to the clear bubble
