Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 7113
TLS Online TPP Program

#Question id: 10332

The four-chambered hearts of birds and the four-chambered hearts of mammals evolved independently of each other. If one were unaware of this independence, then one might logically conclude that

#Unit 9. Diversity of Life Forms
  1. the birds were the first to evolve a 4-chambered heart.
  2. birds and mammals are more distantly related than is actually the case.
  3. early mammals possessed feathers.
  4. the common ancestor of birds and mammals had a four-chambered heart.
More Questions
TLS Online TPP Program

#Question id: 2033

#Unit 4. Cell Communication and Cell Signaling

Initiator complement components
TLS Online TPP Program

#Question id: 2034

#Unit 4. Cell Communication and Cell Signaling

C3 convertase in alternative pathway
TLS Online TPP Program

#Question id: 2035

#Unit 4. Cell Communication and Cell Signaling

The single best defining description of the classical pathway of complement activation is:
TLS Online TPP Program

#Question id: 2036

#Unit 4. Cell Communication and Cell Signaling

Certain microorganism such as Salmonella, Listeria, Neisseria, Cryptococcus consist of specific carbohydrate moieties on the surface antigen that activate
TLS Online TPP Program

#Question id: 2037

#Unit 4. Cell Communication and Cell Signaling

Which of the following complement receptor activate a humoral response by promoting trapping of an antigen-antibody complex?
TLS Online TPP Program

#Question id: 2038

#Unit 4. Cell Communication and Cell Signaling

C3 undergo spontaneous hydrolysis to form C3a and C3b, but they have short half-before encountering the carbohydrate bacterial antigens only. Which of the following carbohydrate moieties present in the mammalian cells that inactivates C3b?