GK Multiple Choice Questions
GK Multiple Choice Questions 1) What is the pH value of the human body? 9.2 to 9.8 7.0 to 7.8 6.1 to 6.3 5.4 to 5.6 Answer: b Explanation: The pH range of the human body under favorable conditions is 7.0-7.8. Usually, it depends on the part of the body. Saliva is usually about 7.1 to 7.5, blood needs to be 7.35 to 7.45, stomach acid is 1.5 to 3.5, and urine can range from 4.6 to 8.0, depending on what you have been eating or drinking, and how much water you have been drinking. pH is maintained in the body through three important mechanisms; respiratory control, renal control, and buffer systems. 2) Which of the following are called "Key Industrial animals"? Producers Tertiary consumers Primary consumers None of these Answer: c Explanation: According to Elton (1939), the term "Key Industrial animals" for primary consumers as they convert the plant material into animal material. Primary consumers, which is more or less synonymous with "herbivores," eat the...