Why do all vertebrates have very similar forms during development

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

Which pedigree symbol is used to represent a female carrier of a recessive x-linked trait? поө0 || save and exit submit

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.