In coral reefs, clownfish live unharmed among the poisonous tentacles of sea anemones. The sea anemones protect the clownfish from predation, while the clownfish scare off predators, such as the butterfly fish, which would otherwise eat the anemones
The clownfish may also provide important nutrients to the anemones. This arrangement is an example of which symbiotic relationship?
A) Parasitism B) Mutualism C) Commensalism D) Amensalism
B
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At present, the world population is growing at about 8.5 percent per year for a doubling time of 20 years.
Answer the following statement true (T) or false (F)
All of the following are possible indicators that creep is occurring except for ________
A) curved tree trunks B) tilted fences or power line poles C) an extremely thick soil profile D) cracks in roads or sidewalks
Although any open container can serve as a rain gauge, what advantages does a standard rain gauge provide?
What will be an ideal response?
________ energy is provided by processes that replenish themselves or are continuously present as a feature of the solar system.
A. Free B. Power C. Nuclear D. Renewable