Climate change is one of the most serious problems of the twenty-first century. Should issues related to climate change be considered the responsibility of environmentalists, ecologists, or both? Oa) Environmentalists, because they consider ecological knowledge along with public policy. Ob) Both ecologists and environmentalists, because neither is equipped to control climate change on their own. c) Both ecologists and environmentalists, because a scientific understanding of climate change is needed to make reasonable policy decisions. Od) Ecologists, because scientists are best able to quantify the changes taking place. e) Environmentalists, because the most important effects of climate change are social, political, and economic. 73°F WT

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.

hammurabi rulers

good lesson