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
Anna11 [10]
3 years ago
14

Which fossils provide information as to the mode of formation of an oxygen-rich atmosphere by about 2 billion years ago? multipl

e choice dinosaurs stromatolites trilobi?
Biology
1 answer:
Dominik [7]3 years ago
3 0
The fossils that provide information on the formation of an oxygen-rich atmosphere are the stromatilites from the Precambrian era. These are layered and columnar fossils consisting mainly of cyanobacteria which were the original life form back then. These bacteria took in carbon dioxide and produced oxygen by photosynthesis as early as 2.5 billion years ago (the earth is about 4.5 billion yrs old).
You might be interested in
What would happen if the cell membrane only had 1 layer of phospholipids?
Fofino [41]

Answer:  

If phospholipid bilayer diffusion is normally negligible, there will be tissues (largely lacking in transporters that may be expressed elsewhere) which, despite the relative functional similarity of their phospholipids, are very poor at taking up drugs: the blood–brain [33], blood–testis [34], and blood–retina

Explanation:

3 0
3 years ago
How are the various types of plants and fungi different from each other? What characteristics do plants and
melomori [17]

Answer:

While both are eukaryotic and don't move, plants are autotrophic - making their own energy - and have cell walls made of cellulose, but fungi are heterotrophic - taking in food for energy - and have cell walls made of chitin.

Explanation:

8 0
3 years ago
Read 2 more answers
____ is a type of weathering where rock is dissolved by an acid.
TEA [102]

Answer:

This Would be B

Explanation:

Oxidation is something that dissolves rock.

5 0
3 years ago
What is the name of the jelly-like substance that is inside the cell?
Nutka1998 [239]

Answer:

Cytosol

Explanation:

Hope this helps!

8 0
3 years ago
Read 2 more answers
Which of the following statements describes a benefit of most cells being
azamat
C I used it and it worked
4 0
3 years ago
Read 2 more answers
Other questions:
  • In exocytosis, the membrane package fuses with _____.
    6·1 answer
  • ¿fabrica proteínas que en lo general permanece en la célula?
    9·1 answer
  • How does poe use the house as a character
    6·1 answer
  • Read the passage about the fluoridation of drinking water.
    6·1 answer
  • According to the theory of _____________, mitochondria in cells today are the descendants of aerobic prokaryotes that used oxyge
    15·1 answer
  • Which organelle is responsible for making lipid molecules that will be used by the cell?
    10·1 answer
  • GIVING BRAINLEST!!
    5·1 answer
  • Transcribe the following G G C C G T T T C A C C to mRNA
    15·1 answer
  • What part of respiration does not require oxygen
    12·1 answer
  • 3. The table below shows factors that could be present in a population. Next to each factor,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!