- (A) 9
- (B) 5
- (C) 6
- (D) 7
Biology Mcqs
- (A) They are surrounded by single or double pieces of hard skeleton.
- (B) Their shell grows as the animal grows.
- (C) They have hydrostatic skeleton.
- (D) They move by tube feet
- (A) To bind with actin
- (B) To bind with tropomyosin.
- (C) To bind with Ca2+ ions.
- (D) All of these
- (A) 4 bones
- (B) 6 bones
- (C) 8 bones
- (D) 14 bones
- (A) Femur
- (B) Tibia
- (C) Radius
- (D) Fibula
- (A) Bracheoradialis
- (B) Brachialis.
- (C) Intercostals
- (D) Triceps
- (A) A compact bone.
- (B) A spongy bone.
- (C) Cartilage
- (D) All of these
- (A) Ligaments.
- (B) Tendon
- (C) Muscles.
- (D) None of these
- (A) Ca & PO4
- (B) CaCO3
- (C) CaSO4
- (D) SiO2
- (A) Hypocalcemia
- (B) Hypercalcemia
- (C) Clostridum tetani.
- (D) Low O2 level
