Chromium is already being used in the medicine industry to treat cancer (ovarian cancer in the form of chromium phosphate). So chromium may be used to build the efficiency of cancer treatment and make it more cost-efficient.
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Answer:
B. Savanna biomes are closer to the equator and receive more rain.
Explanation:
They Increase the surface area available for the absorption of nutrients
Answer:
their very similar environments.
Explanation:
The type of evolution that is referenced here actually has a name -- convergent evolution. It's when two types of organisms/species have nothing in common ancestor-wise but still evolve similarly due to their similar environments. The similar body plan the question is referencing could include fins and other "fish features" as well. :-)