Practice Questions

TLS Online TPP Program

#Question id: 5644

If embryos are disaggregated with chemicals or proteases, and the individual cells are mixed together in culture, what will happen?

#Unit 5. Developmental Biology

The cells will regulate to form one or more normal embryos
The cells will often sort themselves so that like cells are together
The cells will reaggregate to form a normal embryo capable of continuing development
The cells will associate with one another randomly

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TLS Online TPP Program

#Question id: 3444

#Unit 11. Evolution and Behavior

Which of the following is least related to the others?

TLS Online TPP Program

#Question id: 1897

#Unit 4. Cell Communication and Cell Signaling

The single best description of type III hypersensitivity is that it involves:

TLS Online TPP Program

#Question id: 4991

#Unit 11. Evolution and Behavior

Which of these fly organs, as they exist in current fly populations, best fits the description of an exaptation?

TLS Online TPP Program

#Question id: 373

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the hydroxyl ion (OH-) concentration of a solution of pH 8?

TLS Online TPP Program

#Question id: 11096

#Unit 7. System Physiology – Animal

In which structure does diffusion of oxygen to capillaries not play a major role?