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
hjlf
3 years ago
10

What allowed the earth’s atmosphere to increase in oxygen concentration?

Biology
1 answer:
Sophie [7]3 years ago
3 0

Answer:The answer is tiny organisms known as cyanobacteria, or blue-green algae.

Explanation:

These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and oxygen increase. Additionally, some sources you could use that I used to answer this question was

https://www.scientificamerican.com/article/origin-of-oxygen-in-atmosphere/

You might be interested in
Give some examples of biodiversity you find in your ecosystem.
artcher [175]

Most people recognize biodiversity by species—a group of individual living organisms that can interbreed. Examples of species include blue whales, white-tailed deer, white pine trees, sunflowers, and microscopic bacteria that can't even be seen by the naked eye.

8 0
2 years ago
What are the effects of soil salinization most likely to be seen
AnnyKZ [126]

The correct answer is C

8 0
3 years ago
Read 2 more answers
Alpha cells are to ________ as beta cells are to ________.
Pie

alpha cells are glucagon and beta cells are insulin


4 0
3 years ago
Can vitamins act as coenzymes?
Charra [1.4K]
Coenzymes are often found in vitamins. Metal ions are usually cofactors.
8 0
3 years ago
Question 1 (1 point)
scoray [572]

Answer:

1. Unicellular

2. Flagellum

3. Cillia

7. It wouldn't be able to move.

8. It uses psudopods

9. Amoeba

10. Paramecium to Cillia

Explanation:

6 0
2 years ago
Other questions:
  • Through which of the following processes is carbon removed from the atmosphere? decomposition of organic waste, burning of fossi
    10·2 answers
  • An object's velocity can be described by its speed and acceleration<br><br> true or false?
    14·2 answers
  • The ________ nerve is not a branch of the trigeminal nerve.
    9·1 answer
  • 6. The breaking down and changing of rocks at or near Earth's surface is called
    13·2 answers
  • Humans do this only every 10 months. Other organisms such as insects, can do this every 2 weeks. Is this reproduction or evoluti
    14·1 answer
  • A specific atom of molybdenum has an atomic number of 42 and a mass number of 96. How many protons are in this atom of molybdenu
    7·1 answer
  • What might happen to the food web below if the number of phytoplankton drastically decreased? The small fish and wading birds wo
    12·2 answers
  • A small group of yellow violet plants become isolated from a larger yellow violet plant population. This results in a change in
    12·1 answer
  • PLEASE HELP MEEEE
    12·2 answers
  • Three examples of mitotic reproduction are __________________________, __________________________, and _________________________
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!