There are uses for Bioluminescence that apply to humans. Luciferase can be produced in a lab and used to help forensic investigators find blood, help researchers study diseases such as cancer and Alzheimer's, help doctor's spot abnormalities and other Infectious Diseases. It has also been suggested that bioluminescence can be used to create environmentally friendly lights and the U.S Military recently invested money into bioluminescence research to make environmentally friendly helicopter landing indicators that won't get blown away and security systems to tell the difference between friendlies and enemies. Even humans give off traces of bioluminescence (about 1000 times weaker than the human eye can see) we are our brightest in the afternoon and dimmest in the evening.
Humans do not play a direct role in photosynthesis. Animals consume plants (or plant-eating animals) to obtain the energy produced during photosynthesis. Plants use sunlight, water, and carbon dioxide to make glucose, which is used as energy by both plants and animals.
Humans themselves do not use photosynthesis, but because humans depend on plants, as well as other animals that eat plants, in order to live, no, humans could not live without photosynthesis. Unless plants had another way to make food for themselves, humans could not live without photosynthesis.
It is highly unlikely that humans could evolve gills, as this would require drastic and improbable genetic changes. Humans are adapted to breathe air, and developing functional gills would involve significant alterations to our respiratory and circulatory systems. Additionally, the evolution of such a complex trait would likely take millions of years, if it were possible at all.
Humans and primates share key similarities such as opposable thumbs, forward-facing eyes, complex social structures, and the ability to use tools. These traits make them the closest relatives in the animal kingdom.
Animals that are most similar to humans share characteristics such as complex social structures, advanced cognitive abilities, tool use, communication through language or gestures, and the ability to experience emotions.
"Bioluminescence is the biochemical emission of light by living organisms such as glow-worms and deep-sea fish..."
No.
Terrible grammar. Either the asker does not speek English or is mentally challenged. I will slowly answer this question the best that I can. Humans... use oxygen... to breathe... If humans could not breathe they could not do anything industrial! That is "how humans you use oxygen in industry". They breathe it. You should try it. Your brain could use some oxygen numbnut!
Rocks were benificial because they could use rocks to kill animals and to make the head of the spears
you could use them to herd sheep
Tools or their hands.
for the lumber to make homes
Humans can make simple decisions if they use common sense. Most humans make simple decisions into difficult decisions or make something harder than it really is.
thermometers (liquid mercury)
stone
Animal husbandry is using animals for the purpose of humans.
Every humans are socialized to do, think, use, and make.