If only rare large animals are listed and common small organisms are not counted, what will be lacking?

Correct answer: Understanding of total biodiversity will remain incomplete

Biodiversity includes all organisms in an area—large and small, common and rare. Listing only rare large animals misses insects, microorganisms and other small organisms, even though they are important for pollination, decomposition and food webs. Therefore, the understanding of total biodiversity remains incomplete. Exam tip: In a biodiversity survey, consider all groups of organisms, not only large or well-known species.