Hamad Biology Mcqs 21/12/2021 A. Chitin B. Cellulose C. Lignin D. Proteins Related Mcqs: Van neil hypothesis about the production of oxygen during phosynthesis was based on the study and investigations on___________?A. Bacteria B. Algae C. Protenema D. Cyanobacteria... From one pyruvate passing through Kreb’s cycle, how many NADH are formed?A. 1 B. 2 C. 3 D. 4... Parabronchi are open at ______________ end/s?A. Single B. Both C. Do not have opening D. None of these... In an annelids, the contraction of circular muscle results in___________?A. Lengthening of the body. B. Shortening of the body. C. Widening of body D. Thinning of body... How many vertebrae are present in lumbar region?A. 7 B. 12 C. 5 D. 4...
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