Sunny makes a poster showing the levels of organization in the human body. How can Sunny correct his error? Check all that apply.

Arrow A should point to the organ system.

Arrow B should point to the cell.

Arrow B should point to the organ.

Arrow C should point to the muscle tissue.

Arrow C should point to the organ system.

Classify the structures as homologous or analogous, depending on their structure and function.

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.

Why does bubbling occur when vinegar mixed with baking soda