Which sentence best describes what this organism will look like at the end of its growth period?
A. A small ball of identical cells
B. Three individual cells in a row
C. Two cells, but half the size
D. The same single cell, but larger

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide

What are the pros and cons of transect sampling?

Besides regulating what enters and leaves the cell, what is another function of your choice from question #1?