Oxygen was initially created in Earth's atmosphere by _____.

Biology

2 answers:

solniwko [45]3 years ago

6 0

Which would also be known as <span>cyanobacteria photosynthesizing. Good Luck!</span>

Evgen [1.6K]3 years ago

3 0

Oxygen was initially created in Earth's atmosphere by algaes. It is estimated that marine plants produce between 70 and 80 percent of the oxygen in the atmosphere. Nearly all marine plants are single celled, photosynthetic algae. Hope this answers the question.

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<h2>Answer:</h2>

Option C is correct.

C. 5 kilocalories

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faust18 [17]

Explanation:

For a man weighing 185 pounds his minimum daily protein requirement is <u>67.118 g </u>of protein.

Proteins are integral to many bodily functions including cell growth,repair and as an alternative source of energy.

Further Explanation:

Large monomer chains form biological macromolecules that perform many essential body functions, including nucleic acids, carbohydrates, proteins, and lipids. These are organic molecules, meaning Carbons bonded to the elements oxygen (O), hydrogen (H), nitrogen (N), and phosphorus (P) are ringed or long-chain.

Proteins are structural support molecules consisting of long amino acid chains joined via peptide (CONH) bonds; these are 20 specific units arranged into several macromolecules. Amino acids are absorbed through digestion and incorporated into the cells of the body to form muscle organs that signal molecules and provide an alternative source of energy.

First... convert 185 pounds to kilograms. Pounds (lbs) can be a measure of mass or weight, while Kilograms (kg) are a measure of mass.
1 pound= apprx 0.4535 kilograms. ∴ 185 lbs = 83.8975 kg
Then, find the daily requirement for the person's mass in kg .....................<em>0.8 grams (g) of protein is recommended per kg of body weight. </em>∴ 0.8 × 83.91 = <u>67.118 g</u>

Learn more about proteins and carbohydrates at brainly.com/question/10744528

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