Answer:
Radioactive labeling is a procedure used to monitor the path followed by a chemical element within a biological system to demonstrate the source.
Hypothesis:
The free oxygen produced during photosynthesis comes from water.
Procedure.
Single-celled algae were placed in four petri dishes containing carbon dioxide, glucose dissolved in Water.
In each box the oxygen was radioactively marked.
1 petri dish with CO2 marked. Experimental groups
2 petri dish with H2O marked. Experimental groups
3 petri dish with Glucose marked. Experimental groups (control)
4 petri dish with CO2 + H2O + Glucose, all marked. (control).
Hydrogen Cyanide is an example of a blood agent.
Answer:
Well Cirrus clouds iḿ pretty sure means fair weather. And for the fog it means over much colder ground.
Explanation:
Hope Ie help but still I have to go do school so couldn´t finish this answere bye
