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What else can I help you with?
What was the first living thing that could see?
The oldest recorded organism that had photosensitive sensory organs with the ability to detect the presence and direction of light within a few degrees of accuracy was a prehistoric sea snail that existed approximately 550 million years ago. Organisms that could detect the presence but not the direction of light probably evolved earlier, but no fossils of these organisms have been found.
How could you Detect the presence of cl-?
To detect the presence of CI- ion, add silver nitrate solution. A white opalescence to cloudy precipitate of silver chloride will form and confirm the presence of CI- ion.
How could you detect the presence of the l negative ion?
Add some kind of substance, and then if this forms or does not form a substance it will prove whether the I negative ion is in the presence.
How could you detect the presence of the Ag ion?
Silver ions could be detected with the use of a silver ion selective electrode, mass spectrometry, or using certain chemical reactions (ie precipitation when a source of chloride ions is added, complexation using ammonia, etc).
How could you detect the presence of Ag positive?
A reaction with a halide solution (ex. NaCl) is conclusive; a white precipitate of silver chloride is obtained.
How could you detect the presence of Cl- ion?
One way to detect the presence of Cl- ions is by using silver nitrate solution. When added to a solution containing Cl- ions, a white precipitate of silver chloride forms. Another method is using a specific electrode called a chloride ion-selective electrode, which gives a signal proportional to the concentration of Cl- ions in the solution.
What type of flame is used to detect oxygen deficiency?
A non-luminous flame is typically used to detect oxygen deficiency, as it burns with a blue color due to complete combustion in the presence of adequate oxygen. If the flame turns yellow or flickers, it could indicate a lack of oxygen and the presence of other gases like carbon monoxide.
Is there such thing as a portal gun?
In the game Portal, yes.In real life... there could be something called a portal gun. But there's no known way of making something that works even approximately like the gun in Portal.
Who are chell's parents from portal 2?
Wiki says that Cave Johnson and Caroline from Portal 2 could be Chell's parents.
What observation could be used to determine that an ocean organism carries out autotrophic nutrition?
its because the organism either lives close to the surface and because chloroplasts are visible in its cells (only if it is a plant) this information was found in my AP Biology textbook
Which is better halo reach or portal 2?
Definitely Reach. Portal 2 was just awful. There was absolutely no action. Portal 2 was stupid and I could not get into it. Halo Reach is all action and fun.
How could you detect the presence of chloride negative ion?
One common method to detect the presence of chloride ions is through a silver nitrate solution. When silver nitrate is added to a sample containing chloride ions, a white precipitate of silver chloride forms. Another method is ion chromatography, which can separate and detect chloride ions based on their different migration times in a chromatographic column.
