In the geologic time scale, there is a largedelay between the evolution ofphotosynthetic bacteria and the increase inatmospheric oxygen. This delay is accountedfor by the large amount ofiron in the oceans and crust of early EarthO predators of early photosynthetic bacteria thatreduced population sizeslead in the oceans and crust of early EarthO holes in the atmosphere of early Earth thatallowed oxygen to escape Commensalistic relationships are hard todefine in relation to prokaryotes becauseO It can be difficult to determine the benefitsderived by the prokaryotesO It can be difficult to determine when onespecies is benefiting while the other isunaffectedO Most prokaryotic relationships withmulticellular species are parasitic due to thepathogenic nature of prokaryotesO It can be difficult to prove that the prokaryoteis not causing harm to the host species

Option (A) is correct option . The evolution of photosynthetic bacteria occured 3.4 billion years…

In the geologic time scale, there is a large delay between the evolution of photosynthetic bacteria and the increase in atmospheric oxygen. This delay is accounted for by the large amount of O iron in the oceans and crust of early Earth predators of early photosynthetic bacteria that reduced population sizes lead in the oceans and crust of early Earth O holes in the atmosphere of early Earth that allowed oxygen to escape

In the geologic time scale, there is a large delay between the evolution of photosynthetic bacteria and the increase in atmospheric oxygen. This delay is accounted for by the large amount of O iron in the oceans and crust of early Earth predators of early photosynthetic bacteria that reduced population sizes lead in the oceans and crust of early Earth O holes in the atmosphere of early Earth that allowed oxygen to escape

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter18: Life's Origin And Early Evolution

Section: Chapter Questions

Problem 14SA: During the Precambrian, _______. a. atmospheric oxygen concentration declined b. bacteria, archaea,...

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