1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alina [70]
3 years ago
10

Fossils evidence shows that ___________________were the first photosynthetic organisms on earth,about 1.2 billion years ago.​

Biology
2 answers:
tankabanditka [31]3 years ago
7 0
There is suggestive evidence that photosynthetic organisms were present approximately 3.2 to 3.5 billion years ago, in the form of stromatolites, layered structures similar to forms that are produced by some modern Cyanobacteria
alekssr [168]3 years ago
4 0

Answer:

cyanobacteria

Explanation:

You might be interested in
For a gene with a dominant allele T and recessive allele t, what proportion of the offspring from a TTxTt are expected to be hom
kiruha [24]

Homozygous being (TT): 50%

Heterozygous being (Tt): 50%

Hetero- different

Homo- the same

7 0
3 years ago
What occurs directly before forming a hypothesis
Anvisha [2.4K]
Purpose and Research to form your hypothesis 
3 0
3 years ago
Read 2 more answers
Jerome puts two magnetic vehicles very close to each other. what will happen next, and why?
vekshin1
The magnetic vehicles will move closer to each other because the magnetic force will pull the vehicles together.
8 0
3 years ago
True or false, the more elliptical the stain, the more accurate the definition of directionality
gavmur [86]
The answer is true, if something in coming at you from a steep direction, there will me more of a long oval shape rather than it hitting you head on making a circle
3 0
3 years ago
CAn you help me with this question on abiotic and biotic
Natasha2012 [34]

biotic and non living

8 0
3 years ago
Other questions:
  • Identify and explain three major issues that cut across psychology
    11·1 answer
  • The Mohorovicic discontinuity was discovered by monitoring the speed of seismic waves through Earth. Please select the best answ
    5·2 answers
  • Which process must occur before mitosis and meiosis can occur?​
    11·1 answer
  • Which cyclic process is responsible for sexual reproduction of a diploid sporophyte
    14·1 answer
  • Small differences between parents and offspring accumulate over time. This process
    15·2 answers
  • Proteins are composed of which of these subunits?
    5·2 answers
  • The lobe(s) that take(s) the heaviest hit in a traumatic brain injury is /are the ________ lobes
    10·1 answer
  • Energy is ____________ during each transfer of electrons in cellular respiration.
    6·1 answer
  • Plz help me thxs Appreciate
    12·1 answer
  • Why are there usually few organisms at the top of an energy pyramid?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!