- (A) Earthworm
- (B) Round worm
- (C) Tape worm
- (D) Pin worm
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- (A) H- zone
- (B) M- Line
- (C) Z- Line
- (D) A band
- (A) Growth inhibitor
- (B) Growth stimulator
- (C) Growth hormone
- (D) None of these
- (A) They are multinucleated.
- (B) They are 10 – 100 ?m in diameter & surrounded by sarcolemma
- (C) They contain O2 storing molecules called hemoglobin.
- (D) Their cytoplasm contains high concentration of carbohydrates
- (A) Gibberellins
- (B) Abscisins
- (C) Auxins
- (D) Cytokinins
- (A) They appear darker than smooth muscles by naked eye.
- (B) Alternating dark and light bands appear on their surface when visualized by naked eye.
- (C) Alternating dark and light bands appear on their surface when visualized via a microscope.
- (D) All of these
- (A) Positive phototropism and negative geotropism
- (B) Negative phototropism and positive geotropism
- (C) Negative tactic movement and positive tropic movement
- (D) Positive geotropism of stem and roots
- (A) A smooth muscle
- (B) A cardiac muscle
- (C) A skeletal muscle.
- (D) All of these
- (A) An enzyme that digest endocuticle during an arthropodal ecdysis
- (B) A newly formed exoskeleton in authropods
- (C) A hormone that regulates moulting in arthropods
- (D) A process that involves moulting
- (A) It permits gaseous exchange
- (B) It contains joints, for the same purpose as present in human skeletal system
- (C) It provides muscle attachment
- (D) Like all the other types of exoskeleton, they lack sensation

