Based on the data, propose a hypothesis to explain the change in blood lactate levels in Weddell seals for dives lasting longer than 20 minutes.

Draw the structure of dna nucleotide with adenine as nitrogenous base

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

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above