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).
Answer:
B.
Explanation:
potential energy changes into kinetic energy
Answer:The Gas that is being transported and the smoke coming out of the chimney
Explanation: non renewable energy resources comes from sources that will run out of like Gasoline coal etc
Its "C" because the earth only has a certain amount of oil but yet we have endless amount of sun, solar, and wind
Answer:
ATP
Explanation:
ATP is a chemical forumal for enegry