HORTICULTURE

Detailed explanation-1: -The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

Detailed explanation-2: -Answer: The organizational structure of all plants and animals can be ordered into different levels, each having specific function, beginning with the smallest, least complex structure, the cell, to tissues, organs, organ systems, to the largest, most complex structure, the organism.

Detailed explanation-3: -The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism. See below Figure 1.1.

Detailed explanation-4: -Cell → organ → tissue → organism → organ system.