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Answers to this question vary: there are a number of hypotheses on the first origin of life. The leading thought is that the first molecular replicators came into existence near thermal vents on ocean floors, in deep caves, or in shallow waters near volcanoes.
Some hypotheses include the possibility that the molecular building blocks of life may have originated in space. Spectrographic analysis of interstellar gas clouds shows that they contain organic compounds. Laboratory simulations of primordial conditions on the planet Earth also show the formation of organic compounds including amino acids, a crucial ingredient for the evolution of life.
Wiki User
∙ 10y ago
Wiki User
∙ 6y agoIn the ocean or in deep caves.
There are various hypotheses regarding the origin of life. Most of them have key steps taking place in deep waters, near thermal vents; or in water-soaked crevasses and cracks deep in mineral rock. Less likely candidates are shallow ponds - although some of the complex organic molecules involved in abiogenesis may have formed in such ponds.
Wiki User
∙ 11y agoIn the ocean or in deep caves
Wiki User
∙ 10y ago
Probably in tidal pools.
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How does the chemical equation show that a chemical reaction has occured?
A compund
What are three clues that a chemical change has occured?
Three clues that a chemical change has occurred:Color changesa precipitate formsa gas forms
What can be evidence of a chemical reaction?
Generally, you know a chemical reaction has occured if there is a change in temperature, a change in color, a formation of a gas (bubbles), or any kind of flame.
When two white compounds are mixed in a solution a yellow solid forms What kind of reation has taken place?
A chemical reaction, because when the two substances were combined a color change and a precipitate formation both occured.
Which of the following is a definite indicator that a chemical change has occured?
Definite indicators of a chemical reaction include exothermic reactions (heat), colour change, bubbles and there might be a few morea new substance forms (study island)
How long ago do scientists believe chemical evolution occured?
Some time after the first stars lit off, so about 13.5 billion years ago.
Does oxygen should have existed for the chemical evolution of life on earth to have occured?
its oxygen
How is theory of evolution of Darwin and Hugo deVries different?
Darwin considered evolution to be caused due to : 1)small changes/variations that occured 2)these variations were directed specifically towards adapting to the environment(directional) 3)evolution was a slow process De Vries believed that evolution occured by: 1)large changes that occured 2)these changes were mutations and were stochastic or random, not directional 3)evolution occured in fits and starts and was not a slow ongoing process
How does the chemical equation show that a chemical reaction has occured?
A compund
When substances are different from the starting substances what occured?
This is a chemical reaction.
When a substance changes into a difference substance a what change has occured?
chemical change
What are 2 types of evidence that suggest that evolution has occured?
Accept fossil evidence, anatomical evidence, molecular evidence
What do scientists call an area along fault where no earthquake activity has occured for a long time?
a seismic gap
What happens in a can of spoiled food as gas is produced?
A chemical reaction of food decomposition occured.
When a metal changes color because it has reacted with another substance and what change occured?
Chemical
What are three clues that a chemical change has occured?
Three clues that a chemical change has occurred:Color changesa precipitate formsa gas forms
When do scientists believe the last ice age occured?
We are in an ice age now. The last glaciation ended about 10,000 years ago depending on which part of Earth you live. There have been many glaciations during the past 2.6 million years.
