Question

1. which of the following sequences shows a decreasing level of complexity? a) organism → cells → organs → tissues b) organism → organs → tissues → cells c) cells → tissues → organs → organism d) organs → organism → cells → tissues

Explanation:

• In biology, the biological organization hierarchy from most complex to least complex is: organism (most complex) → organs → tissues → cells (least complex).
• Option A has incorrect order as cells are less complex than tissues and organs.
• Option C shows an increasing level of complexity (cells → tissues → organs → organism).
• Option D has incorrect order with organism being more complex than organs.

Answer:

B. organism → organs → tissues → cells