Which type of cell is considered the least complex

How does human environment effect the biosphere

Ineed with a hypothesis my question is can seeds sprout in different locations?

Select the correct answer. which statement applies only to the axial skeleton, not the appendicular skeleton? a. it contains a pivot joint. b. it has muscles attached that work in pairs. c. it contains red bone marrow. d. it possesses fossa for bone articulation. e. it protects the heart and lungs.