LIFE SCIENCE

Detailed explanation-1: -The organism is the fifth level of organization. Cells, tissues, organs, organ systems organisms–each level of organization interacts with every other level. The smooth fuctioning of a complex organism is the result of all it various parts working together.

Detailed explanation-2: -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-3: -Tissues in the Human Body The simplest living creatures are single cell creatures, but in complex life forms, such as human beings, cells also exist in the tissue level. Tissues are groups of similar cells that have a common function. The four basic tissue types are epithelial, muscle, connective, and nervous tissue.