Other Adaptations

1
Other Adaptations

• Aerobic vs Anaerobic
• oxygen necessary
• no oxygen necessary
• Spore Formation
• resist extremely harsh conditions for hundreds
  (or more?) of years
• Extremophiles
• temperature, salinity, pressure, even outer space?

2
Prokaryotes vs Eukaryotes
3
Domain Eukarya
4
Metabolism

• What form of metabolism?
• Energy source light
• Carbon source CO2
• Energy source organic molecules
• Carbon source organic molecules
• Mixotrophs?

5
Endosymbiosis
6
The Evolution of Sex
Fig 13.6
What is the evolutionary importance of sex?
7
Evolutionary Importance

• Increased Genetic Diversity
• Foundation for evolution of life on earth
• Independent Assortment
• Humans gt8 million unique haploid combos
• Crossing Over
• Unlimited new genetic combinations
• Random Fertilization
• Humans gt70 trillion unique diploid combos