What are the visual accesory organs and their functions?

What is the production of haploid gametes main purpose? How do abalone breathe? What are the A to Z rivers of the world? What is the best way to separate iron cobalt and nickel? Does the celestial sphere exist physically? Do fluids take up space and why? How many cubic meters of dirt are in a hole 2 meters wide by 2 meters long by 2 meters deep? Why do you think prominences are probably more exciting to see than sunspots or solar flares? Is 0.00297g the same as 2.97 milligrams? Would you weigh less on a higher level or lower? What combination of different substances that remain the same individual substances and can be separated by physical means? What other group on the periodic table is most likely to react with elements in group 1A? What was the Army equivalent of the Navy's Sonarman Third Class SO3? What factors influence the worlds climate regions? What tropisms plants need to survive varius levels in the forest? How changes in natural can habitats can have a drastic impact on ecosystem? Which cellular phone provider provides their customers with the cheapest calls? Do some electrical breakers when they are tripped go into the off position instead of the normal tripped position I have a cutler hammer breaker that tripped but is in the off position? How O2 and Co2 are transported around the body? What is the connection between a metalloid and semiconductor?