What layer of the atmosphere is the most dense?

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?

During photosynthesis, hydrogen ions are most directly used to in the chloroplast pictured above. a) make glucose b) make chlorophyll c) produce carbon dioxide d) drive the production of atp