Choose incorrect option regarding cockroach: (A) Open circulatory system. (B) Haemocoel present. (C) — NEET Chemistry Past Papers Chemistry Question

Question

Choose incorrect option regarding cockroach: (A) Open circulatory system. (B) Haemocoel present. (C) Blood transports oxygen. (D) Dorsal heart present. 100. A. Emphysema is characterized by destruction of alveolar walls and reduced respiratory surface. B. In heart failure, cardiac output becomes insufficient to meet body needs. C. Myasthenia gravis is caused by autoimmune destruction of acetylcholine receptors. D. Osteoporosis results in increased bone density. (1) A, B, C only (2) A and D only (3) A, B, C, D (4) B and C only