What type of molecules can diffuse through a membrane?​

Which scientist(s) is/are given credit for making the first recorded observations of microorganisms, such as bacteria and protists, with their microscope?

Which of these statements are true about scientific theories and hypothesis

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.