Describe how to use an oil immersion lens. Include any preparation and post observing steps

Before even using oil immersion lens, make sure you set the microscope to the lowest objective 4x.

You want to start small before increasing the magnification. Before you move to the next power (from 4x to 10x), make sure your center is focused using the coarse adjustment. Then move to 10x, and do the same adjustment. Then onto 40x, and once you get to 100x, use the fine focus (not coarse focus! because it will move the speciman a lot which messes up your field of view. Fine focus is just refinning so the picture appears clear.

Now, when performing oil immersion, get a dropper, and carefully drop an oil on the speciman, and get a slider to cover on top of it (BUT DO IT SLOWLY! you don't want to get any bubbles in it).

ability to mate mark me brainliest

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.