Name 2 eukaryotes that have a cell wall

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?