200k views
16 votes
Cyanobacteria were the first organisms to photosynthesize but

they died out before the end of the Precambrian.
True or false

User Searene
by
5.7k points

2 Answers

8 votes
Cyanobacteria was amongst the first crown Eubacteria to evolve. Also for more than 2.5 billion years they have strongly helped and supported the Earths atmosphere and so the cyanobacteria did not die out before the precambrian.
User Oneporter
by
5.3k points
3 votes

Answer:

true

Step-by-step explanation:

User Machfour
by
5.3k points