Practice Questions

TLS Online TPP Program

#Question id: 11406

Which of the following is true for a critically endangered species?

#Unit 10. Ecological Principles

Reduction in population size is greater than 90%; estimated extinction risk at least 80% in 10 years; area of occupancy less than 10 km^2 generations
Reduction in population size is greater than 90%; estimated extinction risk at least 50% in 10 years; area of occupancy less than 100 km^2 generations
Reduction in population size is greater than 90%; estimated extinction risk at least 50% in 10 years; extent of occurrence less than 10 km^2 generations
Reduction in population size is greater than 90%; estimated extinction risk at least 50% in 10 years; area of occupancy less than 10 km^2 g

More Questions

TLS Online TPP Program

#Question id: 1991

#Unit 4. Cell Communication and Cell Signaling

Why can normal immune responses be described as polyclonal?

TLS Online TPP Program

#Question id: 1992

#Unit 4. Cell Communication and Cell Signaling

How do antibodies of the different classes IgM, IgG, IgA, IgD, and IgE differ from each other ?

TLS Online TPP Program

#Question id: 1993

#Unit 4. Cell Communication and Cell Signaling

When antibodies attack antigens, clumping of the affected cells generally occurs. This is best explained by

TLS Online TPP Program

#Question id: 1994

#Unit 4. Cell Communication and Cell Signaling

Phagocytosis of microbes by macrophages is enhanced by which of the following?

TLS Online TPP Program

#Question id: 1995

#Unit 4. Cell Communication and Cell Signaling

What is the primary function of humoral immunity?

TLS Online TPP Program

#Question id: 1996

#Unit 4. Cell Communication and Cell Signaling

Naturally acquired passive immunity would involve the