- (A) Inner walls folding
- (B) Gastro Vascular system
- (C) Reproduction
- (D) Porous walls
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- __ step of action potential is energy dependent.
- (A) Refractory period
- (B) Depolarization
- (C) Action potential stage
- (D) Repolarization
- Some minerals are needed in relatively large amount and are called?
- (A) Non essential minerals
- (B) Microminerals
- (C) Trace minerals
- (D) Macrominerals
- Calmodulin, a cytosolic protein has ___ binding sites for calcium.
- (A) 1
- (B) 2
- (C) 3
- (D) 4
- In the membranous skeleton which sheath surrounds the central nervous system?
- (A) Peritoneum
- (B) Perineural
- (C) Perineurium
- (D) Perichondrial
- Living __ are scaleless.
- (A) Bony fishes
- (B) Sharks
- (C) Hagfishes
- (D) Ostracoderms
- Which amino acid lost in the cystic fibrosis?
- (A) Phyenylalanine
- (B) Glycine
- (C) Alanine
- (D) Methionine
- Wood is the basic raw material used in the manufacturing of?
- (A) Gun Powder
- (B) Paper
- (C) Paint
- (D) Molasses
- Pollination by birds is called?
- (A) Entomophily
- (B) Autogamy
- (C) Anemophily
- (D) Ornithophily