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
Taya2010 [7]
3 years ago
15

Life on earth began as the product of chemical reactions which occurred

Biology
1 answer:
Kazeer [188]3 years ago
7 0

Answer: Over 4 billion years ago

Explanation: The chemical reactions between carbon and water is said to bring about life according to scientists. These reactions builds largely upon four families of chemicals (lipids, carbohydrates, amino acids, and nucleic acids).

However, the actual time of life on Earth has varying speculations from different scientists in fields of study (such as molecular biology, chemistry, oceanography, etc).

Furthermore, microfossils within hydrothermal-vent precipitates dated from 3.77 to 4.28 billion years is presumed to inhabit the oldest record of life on Earth. Hence, which is presumed to have occurred after ocean formation 4.4billion years ago.

Thus, the actual date of the chemical reactions that brought about life is not rigid, but presumed to have occurred over 4billion years ago (according to research).

You might be interested in
The flounder ability to camouflage itself in different environments is a characteristic of life know as ___.
Tpy6a [65]
Adaptability. it helps it survive in its environment
6 0
3 years ago
Read 2 more answers
How is a specific enzyme able to catalyze a specific reaction?
kondor19780726 [428]
An enzyme binds to a specific substrate (reactant) for the reaction catalyzed.
8 0
3 years ago
Read 2 more answers
What is the movement of water along the concentration gradient
Ne4ueva [31]
Osmosis is the movement of water along the concentration gradient.
6 0
3 years ago
A client who has been npo for 3 days is receiving an infusion of d5w 0.45 normal saline
hodyreva [135]
The other part of the question;, contd' normal saline with potassium chloride 20 mEq at 83 ml/hour. The client's eight-hour urine output is 400 ml, blood urea nitrogen is 15 mg/dl, lungs are clear bilaterally, serum glucose is 120 mg/dl, and the serum potassium is 3.7 mEq/l. Which action is most important for the nurse to implement?
I think the nurse should first document in the medical records that these normal findings are expected outcomes with the medication given. Also it is important to note that the results are all within normal range and therefore, No changes are needed
3 0
3 years ago
If y'all hvae course hero and can see this, please help
garik1379 [7]
Bata and I were thinking about going
6 0
3 years ago
Other questions:
  • PLEASE HELP ME!! THIS IS AN EMERGENCY!!
    5·1 answer
  • Parasympathetic tone...
    5·1 answer
  • Implied warranties can arise as a result of a course of dealing. <br> a. True <br> b. False
    9·1 answer
  • An older adult client enjoys good overall health, but has just been diagnosed with pneumonia and has begun receiving an intraven
    10·2 answers
  • What is the measles virus made of?
    6·2 answers
  • A person with type O blood can give genes
    7·1 answer
  • The process of __________ involves recognition, engulfment, and finally intracellular killing. involves recognition, engulfment,
    14·1 answer
  • Why do people think of pigs as dirty creatures?
    12·2 answers
  • Concentration of sodium (Na ) outside of the cell is lower than it is inside the cell. However, the cell utilizes a membrane pro
    8·1 answer
  • 1. 1. What happens during cell differentiation?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!