701. Choose the correct biology answer: which gas is released by plants during photosynthesis?
✅ A. Oxygen
a: Oxygen | b: Carbon monoxide | c: Methane | d: Ammonia Read more
Biology MCQs – Page 36
702. Choose the correct biology answer: which process reduces chromosome number to form gametes?
✅ C. Meiosis
a: Mitosis | b: Budding | c: Meiosis | d: Binary fission Read more
703. Choose the correct biology answer: which plant tissue transports sugars?
✅ C. Phloem
a: Cuticle | b: Xylem | c: Phloem | d: Stomata Read more
704. Choose the correct biology answer: which blood component helps form clots?
✅ C. Platelets
a: Red blood cells | b: Alveoli | c: Platelets | d: Neurons Read more
705. Choose the correct biology answer: which plant tissue transports water upward?
✅ A. Xylem
a: Xylem | b: Epidermis | c: Cortex only | d: Phloem Read more
706. Choose the correct biology answer: which part of the eye controls the amount of light entering?
✅ A. Iris
a: Iris | b: Cornea only | c: Retina | d: Optic nerve Read more
707. Choose the correct biology answer: what is the largest organ of the human body?
✅ C. Skin
a: Liver | b: Brain | c: Skin | d: Lung Read more
708. Choose the correct biology answer: which molecule is the main immediate energy currency of cells?
✅ B. ATP
a: Starch | b: ATP | c: DNA | d: RNA Read more
709. Choose the correct biology answer: which structure controls what enters and leaves a cell?
✅ A. Cell membrane
a: Cell membrane | b: Chromosome | c: Cell wall only | d: Nucleolus Read more
710. Choose the correct biology answer: which organisms make their own food using sunlight in most ecosystems?
✅ C. Producers
a: Decomposers only | b: Predators | c: Producers | d: Primary consumers Read more
711. Choose the correct biology answer: what is the study of insects called?
✅ A. Entomology
a: Entomology | b: Herpetology | c: Botany | d: Mycology Read more
712. Choose the correct biology answer: what is the study of fungi called?
✅ A. Mycology
a: Mycology | b: Entomology | c: Ecology | d: Ornithology Read more
713. Choose the correct biology answer: which organ produces insulin?
✅ A. Pancreas
a: Pancreas | b: Thyroid | c: Gallbladder | d: Spleen Read more
714. Choose the correct biology answer: which part of the brain helps coordinate balance and movement?
✅ D. Cerebellum
a: Pituitary gland | b: Medulla only | c: Hypothalamus | d: Cerebellum Read more
715. Choose the correct biology answer: which biological process produces two genetically similar daughter cells for growth?
✅ D. Mitosis
a: Fertilization | b: Meiosis | c: Transcription | d: Mitosis Read more
716. Choose the correct biology answer: which vitamin is essential for normal blood clotting?
✅ B. Vitamin K
a: Vitamin C | b: Vitamin K | c: Vitamin B1 | d: Vitamin D Read more
717. Choose the correct biology answer: which cells help defend the body against infection?
✅ C. White blood cells
a: Red blood cells | b: Platelets | c: White blood cells | d: Adipocytes Read more
718. Choose the correct biology answer: which part of a plant absorbs most water from soil?
✅ C. Roots
a: Flowers | b: Fruits | c: Roots | d: Leaves only Read more
719. Choose the correct biology answer: which organ is primarily responsible for gas exchange in humans?
✅ A. Lungs
a: Lungs | b: Gallbladder | c: Spleen | d: Heart Read more
720. Choose the correct biology answer: which pigment gives many plants their green colour?
✅ B. Chlorophyll
a: Haemoglobin | b: Chlorophyll | c: Keratin | d: Melanin Read more