Question

1) half of the oxygen on the atmosphere is produced by a) plants b) animals c) microorganisms d) all the above 2) recently a biggest bacteria thiomargarita namibiensis is discovered by a) Antony van leuwenhoek b) Heide N.schulz c) Robert koch d) Louis Pasteur. 3) A diverse group of eukaryotic, unicellular microorganisms without cell walls is a) fungi b) protozoa c) algae d) none of the above 4) assertion ( A) : bacteria the living organisms which are parasite in nature . reason (R) : protozoas are also a group of microorganisms which are present in both the water and soil a) both a and R are true and R is the correct explanation of a b) both a and R are true but are is not the correct explanation of a c) a is true but R is false d) a is false but R is true 5) virus can reproduce in : a) bacteria b) plants c) animals d) all the above​

Answer 1

Answer:

Explanation:1. Plants