PL HELP (I have asked this two times but nobody answered, so I'm trying again!) :( Find three subtopics for each section
-Biology Foundations
-Cells
-Energy and Transport
-Reproduction and Cell Division
-Classical Genetics
-Molecular Genetics
-Human Body Systems
-Ecology

Depending on the organism the number of in a cell may change

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?