they use microscopes- for small organism that can't be seen with the naked eye
hoes
oceanographers use equipment such as sonar, satellites, and radar to map the ocean floor. marine biologists use scuba equipment, submarines, R.O.V.'s, and various other dissection tools to study and understand organisms that live in the ocean.
Marine biologist have a large array of technology at their disposal. Some of their tools are as follows: scuba gear, microscopes, satellites, and thermometers.
My anal
Scuba gear
scuba stuff and camera and brains
Biologists use chizels.
Computer, scuba gear, microscope, telescope, battles for sampling, thermometers and hydrometer are some of the equipment that a marine biologist use. They mostly do a scientific study of organisms in the ocean or other bodies of water.
Hypothesis and significance testing
Tools include a computer, scuba gear, telescopes and microscope (dissecting, electron, compound), a GPS, satellites, various bottles for sampling (nansen, surface sample bottle, van dorn bottle), grabbers for sampling off of the bottom (ekman grab, petersen grab, wash bucket), succssion plates, quadrants, beach seines, trawls, dredges, thermometers, bathythermograph, hydrometer, salinometer, oxygen probes, chemical test kits, dye, current meeters, surveying equipment, sounder, fathometers and more! It really depends on what they will be studying/ the topic. Also they use your... For more info go to your science teacher.
Because, they use them for examining for helpful things
protozoa