A student conducts an investigation measuring the rate of water loss in milliliters for three plants. Plant 1 is exposed to high humidity, Plant 2 to high temperature, and
Plant 3 to room temperature. Measurements are taken at half-hour intervals for three
hours. In planning this investigation, what additional element is needed to ensure that
it has an effective control?
ed to high temperature

Drag the correct tiles to the image. not all tiles will be used. the diagram is a schematic representation of the electron transport mechanism in mitochondria. label the diagram to complete the model.

One gene can influence trait(s). one trait can be determined by gene(s).

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.