According to the tree which primates share the most recent common with humans?

 bonobos and chimpanzees

A phylogenetic tree is a diagram which depicts the lines of evolutionary descent of different species, organisms or genes from a common ancestor. The more closer a particular species or organism to the common ancestor depicts more common characteristics in common and hence, shows similarities with ancestor. Here, bonobos and chimpanzees are more closer to humans in a phylogenetic tree, hence, these primates share the most recent common ancestor with human.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

the index of refraction of the second medium is higher. i just took the test trust me !