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TLS Online TPP Program

#Id: 10346

T1 cells are mIgMhi, mIgD -/lo, CD21-, CD23-, CD24+, and CD93+. 
T2 cells differ from T1 cells in having higher levels of mIgD and in expressing CD21 and CD23. 

#Unit 4. Cell Communication and Cell Signaling #B-cell #Part B Pointers
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TLS Online TPP Program

#Id: 7057

#Unit 11. Evolution and Behavior

Ockham’s principle - Principle of parsimony 
TLS Online TPP Program

#Id: 7058

#Unit 11. Evolution and Behavior

The Forces of Evolution
mutation, 
genetic drift
gene flow or migration
selection.
TLS Online TPP Program

#Id: 9534

#Unit 11. Evolution and Behavior

Emergence of evolutionary thoughts
TLS Online TPP Program

#Id: 9535

#Unit 11. Evolution and Behavior
TLS Online TPP Program

#Id: 9536

#Unit 11. Evolution and Behavior

Evolution
Evolution means descent with modification, or change in the form, physiology, and behavior of organisms over many generations of time. 
TLS Online TPP Program

#Id: 9537

#Unit 11. Evolution and Behavior

Proximate causes - The subject of cell biology, neurobiology, and many other biological disciplines.
Ultimate causes - Their historical causes, especially the action of natural selection.