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
Arturiano [62]
3 years ago
10

Which were the earliest oxygen-producing life-forms?

Biology
2 answers:
djverab [1.8K]3 years ago
4 0
A. cyanobacteria is the answer!
s2008m [1.1K]3 years ago
3 0
A is the answer Cyanobacteria I hope this helps
You might be interested in
Which of the following explains one way so-called "good" bacteria can protect the body from harmful bacteria?
Arte-miy333 [17]
C.)
.............................................. if not im sorry 
6 0
3 years ago
Read 2 more answers
A man with blood type B and a woman with blood type O produce an offspring.
iren [92.7K]
Go to biology.arizona.edu They have a ton of stuff on blood types. I don’t know if this will help because I’m not in biology yet but I’ve been there and it helped a lot with some stuff. Hopefully that didn’t sound to vague. Have a wonderful day.
3 0
3 years ago
Insulin is a protein that is vital for human survival and is made by special cells in the pancreas. Which organelle in these cel
vlada-n [284]

Answer:

the endoplasmic reticulum

Explanation:

it is the endoplasmic reticulum and the ribosomes of the specialized cells in the pancreas that make insulin

6 0
3 years ago
Read 2 more answers
During photosynthesis, plants release____ into the air through their leaves.
Pani-rosa [81]

Answer:

O2 (oxygen)

Explanation:

Photosynthesis- the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

3 0
2 years ago
The genes carried by all members of a particular population make up the population’s
jeyben [28]
The genes carried by all members of a particular population make up the populations Gene Pool. 
6 0
3 years ago
Other questions:
  • Sort the phrases into the appropriate bins depending on whether they describe exocytosis, endocytosis, or both.
    7·1 answer
  • What Chemical is left over after glycerol and fatty acids are joined?
    10·1 answer
  • Taste buds encourage a desire for a variety of flavors, which also stimulates our appetite for foods that offer different nutrie
    9·1 answer
  • Mary loved having her own garden and would often spend many hours tending to its care. She was meticulous in watering the plants
    12·1 answer
  • When a dominant allele coexists with a recessive allele in a heterozygote individual, how do they interact with each other? a. T
    13·1 answer
  • During which process is energy released 1. external respiration 2. internal respiration
    7·1 answer
  • Hormone that stimulates the growth and secretions of the adrenal cortex
    7·1 answer
  •  Describe la ruta de sangre a través del corazón y tu cuerpo
    13·1 answer
  • What is Hygiene and its Importance? Yeah and Don't copy from Goo gle
    6·2 answers
  • Plllllllssssss heeeellllp
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!