Animals breath in Oxygen and expel Carbon-dioxide.
I think its option b, may carry out nitrogen fixation.
C. The nucleus does not exit within a prokaryotic cell
Answer:These include closing the doors and windows in the evenings to prevent entry of mosquitoes into human dwellings; using mosquito repellant lotions, creams.
Explanation:
Featured snippet from the web:
Photosynthesis is the process by which light energy is converted to chemical energy whereby carbon dioxide and water are converted into organic molecules. The process occurs in almost all algae