Materials essential to life processes move across a cell membrane through a variety of methods. what cell membrane structure allows water soliable materials to be passively transported to the cytoplasm

The earth formed roughly 4.5 billion years ago, yet evidence of life dates back to about 3.5 billion years ago. which one is not a possible hypothesis of how life on earth arose?

After a group of researchers conducts a new experiment that has never been conducted before, what is the best way for other scientists to make sure that the data is real

Drag each characteristic or feature to the correct location on the diagram sort the features and characteristics by the groups they are found in. a.spinal cord b.metamorphosis c.scales d.lungs in adults e.ectothermic f.external fertilization g.gills in adults h.amniotic eggs 1.fish 2.fish and amphibians 3.amphibians 4.fish and reptiles 5.fish, reptiles and amphibians 6.amphibians and reptiles 7.reptiles