In order for nitrogen to be usable for life it must first be

Are these strong bases, neutral, strong acids, weak acids or weak base household bleach (ph=12.6) fluid in a car's battery (ph of less than 1.0) milk (ph=6.7) stomach contents (ph=2.2) pure water (ph=7)

Which sequence correctly shows the path of carbon dioxide during repiration?

In some plants, pointed leaves (p) are dominant over rounded leaves (p). a plant with a genotype of pp