Anew fossil is found, and scientists are debating whether it can be considered a part of the human genus homo. what piece of evidence would best indicate that the fossil is human?

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.

The arrows indicate the direction of wind flow. which place experiences monsoons?

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.