Chemicals released by the Helper (Th) cell is called
A. MHC 2
B. Interleukin
C. antigen
D. t cell receptors
Select your answer:
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Microbial Growth & Nutrition › ViewMicroorganisms that take up carbon (a chemical) from their organic energy source (fats, carbs, proteins).
A. Chemoautotrophs
B. Heterotrophs
C. Chemoheterotrophs
D. Photoautotrophs
Systematic Bacteriology › View
_______ is an evolutionary tree or a branching diagram or tree showing the “inferred” evolutionary relationship among various biological species or other entities
A. Line graph
B. Cladistic
C. Phylogenetic