Practice check: In basic biology, which organ is primarily responsible for gas exchange in humans?

✅ B. Chatton

Option A: Whittaker Option B: Chatton Option C: Haeckel Option D: Margulis and Schwartz Correct Answer : Chatton Read more

✅ A. Periosteum

Option A: Periosteum Option B: Woven bone Option C: Epithelium lining Option D: Connective lining Correct Answer : Periosteum Read more

✅ B. Cerebellum

a: Medulla only | b: Cerebellum | c: Hypothalamus | d: Pituitary gland Read more

✅ B. Yeast

Option A: Mushroom Option B: Yeast Option C: Penicillium Option D: Mold Correct Answer : Yeast Read more

✅ A. Mitosis

a: Mitosis | b: Fertilization | c: Transcription | d: Meiosis Read more

✅ A. Cell membrane

a: Cell membrane | b: Chromosome | c: Cell wall only | d: Nucleolus Read more

✅ C. Activator

Option A: Prosthetic group Option B: Coenzyme Option C: Activator Option D: Cofactor Correct Answer : Activator Read more

✅ B. DNA or RNA

Option A: Cell nucleus Option B: DNA or RNA Option C: Cell membrane Option D: Vacuole Correct Answer : DNA or RNA Read more