How many objective lenses are there, How many total lenses are there in a microscope, and How many adjustment knobs are used to magnify an object? (compound microscope)

3 or 4 objective lenses

2 total lenses

2 adjustment knobs (coarse and fine)

Explanation:

I hope this helps you

eukarya because is is like alche and b is bacteria and d is animals

explanation:

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up