Nitrogenous base:
Correct answer: C. Nucleic acid
- A. Ectotherm
- B. Protein
- C. Nucleic acid
- D. ADH
Explanation
Nucleic acids are macromolecules essential for genetic information storage and transfer in living organisms. They include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), both composed of nucleotides containing a sugar, phosphate group, and nitrogenous base. DNA carries genetic instructions, while RNA facilitates protein synthesis and other cellular processes.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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698 free Homeostasis MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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