To scientists, this suggests that it a. evolved many times during the history of life. Both a and e are correct. Plasmids a. may be gained or lost. All of the above 59. Protozoans can move, and algae cannot.
Protozoans are autotrophic, and algae are heterotrophic.
Algae are photosynthetic, and almost all protozoans are heterotrophic. Algae are prokaryotes, and protozoans are eukaryotes. The inner membrane of a chloroplast is similar to prokaryotic membranes. Mitochondria and chloroplasts are surrounded by two membranes. Mitochondria reproduce by binary fission.