In this last experiment, the CB2 receptor was tested for its ability to couple to other signaling pathways. Neurons were treated as described before. The activation of signaling molecules was assessed by western/immunoblot using phosphorylated Akt (P-AKT) and phosphorylated MAPK (P-ERK1/2) antibodies. What did the data show?

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.