Coordination in Animals Notes Questions with Answers PDF Download – Test 27

MCQ 131: Na⁺ diffusion into the neuron causes its membrane to undergo:

1. polarization
2. depolarization
3. neutralization
4. semi-polarization

MCQ 132: The virus which is responsible for AIDS is typically known as:

1. Hepatitis B Virus (HBV)
2. Human Immunodeficiency Virus (HIV)
3. Hepatitis C Virus (HCV)
4. Hepatitis A Virus(HAV)

MCQ 133: The network of closed tubules without internal openings are called:

1. protonephridium
2. metanephridium
3. malpighian tubules
4. exoluticus tubules

MCQ 134: The transpiration is very essential for plants as it helps plants to:

1. cools
2. exchange gases
3. remove water
4. uptake water

MCQ 135: The proteins which are synthesized by blood to protect the body from nucleic acids and toxins of invading organism:

1. interferon only
2. antitoxins only
3. antigens
4. interferon and antitoxins