Ch. 24 - 27

Question 1

2 theories about the evolution of human lineage since our divergence from chimps:

Answer 1

progressive evolution - single lineage, like a straight line
evolutionary radiation - a tree, like any other animal

Question 2

the defining features of life (3ish)

Answer 2

• can grow and reproduce
• can store, transmit, and express information
• can evolve

Question 3

the RNA world hypothesis proposes that:

Answer 3

catalytic RNA (ribozymes) were a transitional form between nonliving matter and the earliest cells