[[Ques]]: What kind of animal doesn't have a centralized nervous system?
Options:
- (A) dog
- (B) mammals
- (C) cows
- (D) bird
- (E) human
- (F) elephants
- (G) starfish
- (H) a fish
[[Ans]]: [Echinoderms lack a centralized nervous system. Echinoderms are represented by the starfish. Starfish lack a centralized nervous system.]
[(G)]

[[Ques]]: What comes from lifting heavy weights?
Options:
- (A) sizing
- (B) Dehydration
- (C) kinetic energy
- (D) contracting
- (E) Energy
- (F) forces
- (G) destroying
- (H) embellishing
[[Ans]]: [Muscles can only contract. Muscle size comes from lifting heavy weights. Contracting comes from lifting heavy weights.]
[(D)]

[[Ques]]: What regrows broken off segments of itself?
Options:
- (A) barnacles
- (B) teeth
- (C) roots
- (D) earthworm
- (E) Leptospirosis
- (F) spiders
- (G) cells
- (H) root growth
[[Ans]]:
[Annelids have the amazing capacity to regrow segments that break off. Earthworms are annelids meaning segmented. Earthworms can regrow broken off segments of their bodies.]
[(D)]