Lecture 15 - Ch 16 - Microbial Evolution & Systematics

Question 1

Fossilized microbial mats consisting of layers of filamentous prokaryotes and trapped sediment

Answer 1

stromatolites

Question 2

which hypothesis states that Life originated at hydrothermal springs on ocean floor

Answer 2

subsurface origin hypothesis

Question 3

Changes in the nucleotide sequence of an organism’s genome

Answer 3

mutations

Question 4

Evolutionary history of a group of organisms

Answer 4

phylogeny