Line 1: *Annelids have the amazing capacity to regrow segments that break off. Earthworms Earthworms are in the phylum Annelids. Earthworms have the amazing capacity to regrow segments that break off.*
*(D)*
Line 2: *_ have the amazing capacity to regrow segments.
Options:
- (A) ferns
- (B) arachnids
- (C) roots
- (D) earthworms
- (E) anthropods
- (F) crustacean
- (G) loose soil
- (H) root growth*
Logic of a solution: *Electron transport is the final stage of aerobic respiration. Aerobic respiration occurs only in the presence of oxygen. Electron transport occurs only in the presence of oxygen.*
*(D)*
The original question: *Electron transport requires which of the following?
Options:
- (A) electron microscope
- (B) sodium
- (C) Energy.
- (D) Oxygen
- (E) fission
- (F) warmth
- (G) flagellum
- (H) Energy*
Line 1: *Carbon may be stored in sedimentary rock for millions of years. Limestone is a type of sedimentary rock. Carbon might be stored in limestone.*
*(F)*
Line 2: *What might be stored in limestone?
Options:
- (A) carbonated water
- (B) chemicals
- (C) cigars
- (D) candles
- (E) Energy.
- (F) carbon
- (G) Energy
- (H) fossils*
Logic of a solution: *HIV infects and destroys helper T cells. Helper T cells are the critical link in our immune system. HIV damages our immune system.*
*(C)*
The original question: *What does hiv damage?
Options:
- (A) Leptospirosis
- (B) immunities
- (C) Our immune system
- (D) immunizations
- (E) Veins and arteries.
- (F) respiratory system
- (G) Plant reproduction
- (H) the body's largest organ*
Line 1: *Arteries generally carry oxygen-rich blood. Arteries carry blood away from the heart. Something that brings blood away from the heart carries oxygen-rich blood.*
*(H)*
Line 2: *What direction does something that has oxygen-rich blood go?
Options:
- (A) mouth of rivers
- (B) the body's largest organ
- (C) move to different locations
- (D) Earth orbiting the Sun
- (E) Move to another area
- (F) to move people
- (G) animal transport
- (H) Away from the heart*
Line 1: *Roundworms make up the phylum Nematoda. Within the Nematoda, a range of reproductive systems occur. A range of reproductive systems occur in roundworms.*
*(D)*
Line 2:
*What has a range of sexual reproductive systems? 
Options:
- (A) Computer systems.
- (B) Most plants
- (C) animals
- (D) Roundworms.
- (E) mammals
- (F) Art reproductions.
- (G) insects
- (H) Stuffed toy bears.*