Question
22) Approximately how far back in time does the fossil record
extend?
A) 6,000 years
B) 3,500,000 years
C) 6,000,000 years
D) 3,500,000,000 years
E) 5,000,000,000,000 years
Topic: Concept 26.2Skill: Knowledge5
23) What was the consequence of the release of oxygen gas by
plant and bacterial photosynthesis? It
Topic: Concept 26.3Skill: Comprehension
24) Arrange these events from earliest to most recent.
1.emission of lava in what is now Siberia at time of Permian
extinctions
2.emission of lava that solidified at the same time as
iron-bearing terrestrial rocks began to rust
3.emission of lava that solidified at the same time as the
first banded iron formations formed4.emission of lava in what is
now India at time of Cretaceous extinctions
Topic: Concept 26.3Skill: Comprehension
25) The ancestors of which free-living cells were the
earliest autotrophs to contribute to the formation of Earth’s
oxidizing atmosphere?
Topic: Concept 26.3Skill: Knowledge
26) Elemental sulfur is to hydrogen-sulfide-splitting
prokaryotes as ________ is to water-splitting prokaryotes.A) H+B)
H2C) OH-D) O2E) H2O
Topic: Concept 26.3Skill: Comprehension
27) All are true of the photosynthetic machinery of
cyanobacteria, exceptTopic: Concept 26.3Skill: Comprehension6
28) At the time when Earth’s atmosphere was becoming
increasingly oxidizing, which reaction could have helped to prevent
damage to oxygen-sensitive enzymes and structures. In which
prokaryotes might such a reaction have been expected to occur?
(Note: these reactions are not balanced.)
Topic: Concept 26.3Skill: Comprehension
Other samples, services and questions:
When you use PaperHelp, you save one valuable — TIME
You can spend it for more important things than paper writing.
