« previous next »

Author Question: Which organisms were the first to produce O2? What will be an ideal ... (Read 57 times)

javeds

  • Hero Member
  • *****
  • Posts: 570
on: Jul 14, 2018
Which organisms were the first to produce O2?
 
  What will be an ideal response?

Question 2

To which of the following languages is Manchu the most closely related?
 
  A) Mandarin Chinese
  B) Cantonese
  C) the tribal languages of central and southeastern Siberia
  D) the tribal languages of central Tibet
  E) Korean


shayla

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 14, 2018
Answer to Question 1

Oxygenic cyanobacteria were the first organisms to produce O2.

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Chemoautotrophic organisms living around deep-sea hydrothermal vents. Chemoautotrophic organisms living around deep-sea hydrothermal vents.
A model of anxiety in which stressful events or a changing mental condition can produce unfavorable A model of anxiety in which stressful events or a changing mental condition can produce unfavorable
Small intestine, micro organisms Small intestine, micro organisms
Examples of the most common X-ray positions and the images they produce. Examples of the most common X-ray positions and the images they produce.
As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ... As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ...
Find the factor demand for labour and the amount of output it will produce. Show all ... Find the factor demand for labour and the amount of output it will produce. Show all ...
Video: Transcription—A molecular view

For a complete list of videos, visit our video library