12th biology chapter 9 MCQs (Control and Coordination)
12th Biology Chapter 9 MCQs (Control and Coordination) 1. The nervous system of mammals uses both electrical and chemical means to send…
12th Biology Chapter 9 MCQs (Control and Coordination) 1. The nervous system of mammals uses both electrical and chemical means to send…
Respiration and Circulation MCQ with Answers: Important points: Respiration is a vital function of all living cells. It is function of the protoplasm and…
Q1. Which of the hormones can replace vernalization? a. Auxin b. Cytokinin c. Gibberellins d. EthyleneAnswer : GibberellinsExplanation : Gibberellin is a hormone…
Q1. In soil, water available for absorption by root is ………………. a. gravitaional water b. capillary water c. hygroscopic water d….
Q1. Who proposed that the first form of life could have come from per- existing non-living organic molecules?a. Alfred Wallaceb. oparin and Haldanec. Charles Darwind….
Q1. Griffith worked on ………….a. Bacteriophageb. Drosophilac. Frog eggsd. StreptococciAnswer : d Explanation: Griffith used two strains of pneumococcus (Streptococcus pneumoniae) bacteria which infect mice – a type…
The topic of Inheritance and Variation MCQ holds significant importance in competitive exams and is a part of the class 12 biology curriculum in the…
Reproduction in Lower and Higher Animals MCQ: Reproduction in lower and higher Animals is the scoring chapter in the board exam as well as the…
Reproduction in Lower and Higher Plants MCQ: Reproduction is the process by which new individuals of a species are created from pre existing ones. Angiosperms…