Gold Rush for Algae 3. What technological solutions have already been tried? What have the results been? How does this compare with solutions that you have researched or learned about in your study of the unit problem?

4. What technologies do you think to hold the most promise so far? Explain why you think that.

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.