Help with ID please

[Anne]

Please could you help me identify these living things and point me in the direction as to where I could identify things like this on my own. I’ve been searching all over the internet but haven’t got anywhere close to an answer yet. Thanks for your help.
a white blob with finger structures, green and red jelly blobs and a white powder.

 

[LadyMud]

I can't help with your question, Anne, but I spotted a couple of interesting pages on the Cambrian website:
Cave fungi and Cave bacteria

 

[2xw]

Fungus (possibly muscadine), jelly probably nostoc, and probably some sort of algae/lichen (would need closer photo) presumably a lot of these are near the entrance?

 

[mikem]

Powder could just be moonmilk (calcite). The fungus is likely to be on a dead insect

 

[pwhole]

I found this (presumably air-calcited) insect in Odin Mine years ago. The weird object at top left is a stub of miners' candle in clay, with fingerprints in it.