Answer:
All the different plants, animals, fungi, microorganisms, and variety of ecosystems found on Earth
Step-by-step explanation:
Biodiversity can be broken down into "Biological" and "diversity" which means the how diverse in number and variety is the life found on Earth. Life represents all living organisms like plants, animals, microbes etc.
Based on this, all the different plants, animals, fungi, microorganisms, and variety of ecosystems found on Earth is the option that best defines biodiversity. The other options leaves out the variety (talked about only one species) and biological aspect of the term.