Hamad Biology Mcqs 05/09/2020 A. H B. CH3 C. COOH D. C = O Related Mcqs: Functional unit of DNA Is____________?A. Nucleus B. Genes C. Chromosomes D. Nucleolus... The opening and closing of stomata is directly controlled by the___________?A. Temperature B. pH C. Light D. None of these... In a hot summer after noon, if your body’s Homeostatic machinery keep your internal temperature quite lower than that of external than this is an example of____________?A. Positive feed back B. Negative feed back C. Feed back D. Osmoregulation... Which organisms are sometimes called the ” pastures of the sea”?A. Diatoms B. Radiolarians C. Dinoflagellates D. Foraminiferans... The membrane covering the lungs is aA. pleura B. pericardium C. peritoneum D. mesothelium...
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