Which was Ventor's contribution to science? discovered the
existence of
single-celled organisms
invented the
light microscope
discovered the structure of DNA
invented a synthetic cell

option a and d is the correct answer

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c is the answer : )               your welcome

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.