{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}


Diversity+notes+Part+1 - Diversity(Chapters 11 Early Life...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Diversity (Chapters 11) Early Life Planet Earth is at least ________________________________. First evidence for microbial life can be found in ____________________________________________. ____________________________ are fossilized microbial mats consisting of layers of filamentous prokaryotes and trapped sediment. The phototrophic green nonsulfur bacterium _________________ is similar to the filamentous prokaryotes that form the primitive microbial mats. Early Earth was - - - Early Earth conditions suggest that primitive metabolism was - - - ______________________ there was a shift from anoxic to oxic environment. Oxygenic phototrophic ______________________ were the first microorganisms capable of generating oxygen. As oxygen accumulated in the atmosphere, an oxic environment like the present was created. O 2 reacts with short wavelength UV radiation to form _____________ which acts like a shield to protect the Earth from intense UV radiation emitted by the sun. Phylogeny & Taxonomy _____________________ - evolutionary relationships of organisms. Phylogeny is measured by __________________________________ that are typically housekeeping genes essential for a cell such as _____________________________ or ___________________________. By comparing a gene’s sequence amongst many organisms,
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}