Based on Current Knowledge About the Conditions of the Early

Q22: Prior to continental drift, North America and

Q29: _may have evolved from photosynthetic cyanobacteria that

Q31: Why is RNA considered by many scientists

Q43: Ferns and club mosses had an advantage

Q44: Living organisms can spontaneously generate from nonliving

Q45: What is the significance of upright walking?<br>A)It

Q46: An adaptation that is closely associated with

Q48: Cell size is limited by the ability

Q49: The scientific name for Neanderthals is:<br>A)Homo sapiens.<br>B)Homo

Q52: The earliest life forms were photosynthetic eukaryotes.