70 likes | 464 Views
KEY CONCEPT The human body has five levels of organization. red blood cell. nerve cell. Specialized cells develop from a single zygote. Organisms are made up of specialized cells. Zygotes divide into embryonic stem cells. Stem cells develop in 2 stages . Determination
E N D
red blood cell nerve cell Specialized cells develop from a single zygote. Organisms are made up of specialized cells.
Zygotes divide into embryonic stem cells • Stem cells develop in 2 stages. • Determination • committing to become one cell type • Differentiation • acquiring specialized structures & functions
Specialized cells function together in: • Tissues • Organs • Organ systems • Organism