Matching
Match each phylum with the correct description
arthropods
jointed body parts and an external skeleton
cnidarians
radial symmetry and stinging cells
annelids
segmented body and closed circulatory
echinoderms
system
internal skeletons made of hardened plates

In an oxidation-reduction reaction, oxidation is what happens when a reactant

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

In which reaction is precipitation occurring?