The breaking of which bond powers reactions in the cell? Position 1
Position 4
Position 2
Position 3

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

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

Dna replication or repair occurs in a cell in all of thw following situations except when