Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

A. Endemism species are more prone to extinction than fragmented

B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

C. Population variability species are less prone to extinct

D. Species with naturally long life spans may be more likely to become extinct

TLS Online TPP Program

#Question id: 2049

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is TRUE of immune responses?

TLS Online TPP Program

#Question id: 2050

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is NOT TRUE?

TLS Online TPP Program

#Question id: 2051

#Unit 4. Cell Communication and Cell Signaling

In a thymectomized animal, which of the following is irradiated and reconstituted with bone marrow cells?

TLS Online TPP Program

#Question id: 2052

#Unit 4. Cell Communication and Cell Signaling

Why have pigs have been proposed as a source of organs for xenotransplantation to humans?

TLS Online TPP Program

#Question id: 2053

#Unit 4. Cell Communication and Cell Signaling

The single best chance of a tissue graft being accepted in a human recipient is if it is:

TLS Online TPP Program

#Question id: 2054

#Unit 4. Cell Communication and Cell Signaling

What is the single best defining feature of systemic lupus erythematosus (SLE)?