Which of the following pairs is not correctly associated?
a. killer t cells - attack and kill infected cells
b. t cells - activate killer t cells and b cells
c. b cells - engulf cells that are infected with pathogens
d. macrophages - consume pathogens and infected cells

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false

The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian