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
Lyrx [107]
3 years ago
9

Photosynthetic cyanobacteria caused an increase in atmospheric levels of

Biology
2 answers:
goldfiish [28.3K]3 years ago
6 0

C...the key is that they are photosynthetic...so they produce oxygen (like plants)!

Nuetrik [128]3 years ago
4 0

Answer:

C) oxygen

Explanation:

The gaseous product of photosynthesis is oxygen. Cyanobacteria are responsible for much of Earth’s early oxygen.

You might be interested in
Which label belongs in the area marked Z?
Lunna [17]

Answer: D absorb from soil

Explanation: just took the test

6 0
3 years ago
Read 2 more answers
Can someone please describe a plant's circulatory system or how it works?
vladimir2022 [97]
<h2>Answer:</h2><h2><em>The circulatory system transports blood around the body. The vascular system has two parts. Xylem transports water and minerals up, and phloem transports sugar down and to all the cells of the plant.</em></h2><h2><em></em></h2>

Explanation:

<h2><em>Mark me brainless</em></h2>
3 0
3 years ago
What role does molecular evidence play in determining how closely two species are related to each other?
defon
Mitochondrial DNA mutation occurs at a constant rate throughout history. Thus, each different base in Mitochondrial DNA is able to show just how long ago the 2 species diverged from each other.
Hope this helps! :)
8 0
3 years ago
What does this mean?
True [87]

The sediment was being deposited in a new location. <u>Option D.</u>

<u />

Chemical weathering describes the process by which chemicals in rainwater change the minerals of rocks. Carbon dioxide in the air dissolves in rainwater, making it slightly acidic. Weathering describes the deterioration or dissolution of surface rocks and minerals.

Water Ice Salt Plants Animals Changes in temperature are all factors in weathering. When rock is mined, rock fragments and minerals are carried away through a process called erosion. When flooding occurs streams erode Also the same amount of sediment builds up creating a new equilibrium. Plants and animals' air and water are the main causes of weathering.

Learn more about The sediment here:- brainly.com/question/329212

#SPJ1

5 0
11 months ago
Please help need answer. ​
olchik [2.2K]

Answer:

Non-use of drugs:

1. A teen is with family and friends.

2. A teen is a healthy student and athlete

3. A teen is focused and living life free and happy.

Use of drugs:

1. A teen doesn't socialize and doesn't around too many people due to social anxiety caused by the use of drugs.

2. A teen has health problems in his liver and kidney due to the abuse of drugs and is not able to play any sports due to this permanent health condition.

3. A teen is in jail due to being caught in possession of drugs and failing a drug test and being unhappy with anxiety and addiction.

3 0
2 years ago
Other questions:
  • Digest and recycle the cells used components for breaking Dawn part two of nucleic acid’s and carbohydrates
    5·1 answer
  • Find the ratio in simplest form.<br> 30:6<br><br> 1:5<br> 4:1<br> 5:1
    14·1 answer
  • Any biology experiments over 5 days time?
    5·1 answer
  • What is your interpretation of this text? Australia's Wildfire Disaster Worsens in Record-Shattering Heat​
    11·1 answer
  • 4. In a prairie ecosystem, nitrogen and other matter builds up in animal
    5·1 answer
  • 22. Oil is used mostly in the ___<br> sector.<br> transportation<br> O cooking<br> O manufacturing
    7·1 answer
  • If you wanted to study the movement patterns of deer at different times of year using radio transmitters, you would need to use
    15·1 answer
  • i’m tired of school and hate it and have no idea what i’m learning i don’t have any motivation on learning that and i cheat so w
    11·2 answers
  • Provide practical examples of passive (natural and artificial) and active (natural and artificial) immunities?
    5·1 answer
  • All of the following are advantages of preserving biodiversity except:
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!