Show how test cross works using round seeded pea plant of unknown generation??

Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?

How do ratio scale and diagrammatic scale work