Lecture 1 - Characteristics of Life Flashcards
1
Q
Photosynthesis allowed for evolution of _____
A
aerobic metabolism: O2 as electron acceptor; high yield of ATP (anaerboic metabolism: reduce nitrate, sulfate, co2, etc; low yield of ATP)
2
Q
Cambrian explosion resulted in a variety of animal forms (name 4)
A
- Higher O2 levels
- New Niches - ecological diversification
- The evolution of predation
- New (Hox) genes - more complex bodies
3
Q
Where does diversity of living forms come from?
A
- Population of all living organisms evolve
- Evolution results in changes of genetic makeup of populations through time
- Mechanisms of evolution
