Which of the following best describes steps that take place during a humoral immune response? a. t cells divide into t cells and cytotoxic t cells to fight infectious agents. b. cytotoxic t cells destroy pathogens that are detected by memory t cells. c. memory b cells divide and produce plasma cells that engulf and destroy pathogens. d. b cells bind to an antigen and produce plasma cells and memory b cells.

How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.