Which atom leaves from a saturated fatty acid to form the double bonds in an unsaturated fatty acid

the answer is d (apex) good luck : ))

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.

the cell is the smallest structural and functional unit of living organisms, which can exist on its own. therefore, it is sometimes called the building block of life. some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.

what questions are you talking about ?