I think it’s photosynthesis not 100% sure
The urinary system consists of the kidneys, the ureters, the urinary bladder, and the urethra.
The number of chromosomes does not correlate with the apparent complexity of an animal or a plant:
in humans, for example, the diploid number is 2n = 46 (that is, 23 pairs), compared with 2n = 78, or 39 pairs, in the dog and 2n = 36 (18) in the common earthworm.
D. Friends of the scientists who wrote the articles
Because the word “peer” is also another word for friends