Chapter 26 Flashcards
What are the three domains
Eubacteria, Archaea, and Eukaryotes
Both bacteria and archaea are distinct from eukaryotes in that they lack
Compartmentalization of their cells
The hallmark of eukaryotes is
Complex cellular organization
Eukaryotic cells posses the energy-producing organelles termed __ and photosynthetic eukaryotic cells possess ___
mitochondria
chloroplasts
Both mitochondria and chloroplasts are believed to have entered early eukaryotic cells by a process called ___
Endoymbiosis
Mitochondria are the descendants of relatives of
Purple sulfur bacteria
Chloroplasts are derived from
Cyanobacteria
The evolution of _____ allowed organisms to deal with their environments in novel ways through differentiation terof cell types into tissues and organs
Multicellularity
Another major characteristic of eukaryotic species as a group is
sexual reproduction
The evolutionary innovations in cells occurred while life was primarily _____ and established the foundations that led to the ____ on Earth today
aquatic
diversity of life
Major innovations such as ___ for animals and ____ for plants allowed for the move onto land
lungs for gas exchange
stomata for gas exchange
Genera with similar characteristics are grouped into a cluster called a
family
Similar families are placed in the same
order
Orders with common propertied are placed into the same
class
Classes with similar characteristics are placed into the same
phylum
