Logic of a solution: *Some arthropods have special excretory structures. All insects are arthropods. Insects have special excretory structures.*
*(B)*
The original question: *What has a special excretory structure?
Options:
- (A) Silk plants.
- (B) Insects.
- (C) a fish
- (D) animals
- (E) plants
- (F) Architecture structures.
- (G) barnacles
- (H) Corset structure.*
Line 1: *Birds are endothermic tetrapod vertebrates. Legs define Tetrapods. Birds are vertebrate endotherms with legs.*
*(C)*
Line 2: *Birds are vertebrate endotherms with what?
Options:
- (A) fat
- (B) Energy
- (C) legs
- (D) like some sharks
- (E) Tail
- (F) invertebrates
- (G) arms
- (H) four*
Logic of a solution: *Macroevolution occurs over geologic time above the level of the species. Species is a property of genus, genus is a property of family, etc. Macroevolution occurs over geologic time at the level of genus or above.*
*(B)*
The original question: *What is considered to be part of macroevolution?
Options:
- (A) Man
- (B) genus
- (C) pollen
- (D) Birds
- (E) legumes
- (F) power
- (G) embryos
- (H) animals*
Line 1: *Sweating reduces body heat. People of all ages and activity levels perspire or sweat. Perspiration reduces body heat.*
*(F)*
Line 2: *What would a person do that would reduce their body heat?
Options:
- (A) using steel
- (B) Exfoliation
- (C) Evaporation
- (D) drink a warm drink
- (E) burning coal
- (F) perspire
- (G) exercise outside
- (H) take a nap*
Logic of a solution: *Centrioles are organelles involved in cell division. Mitosis is cell division. Centrioles are organelles involved in mitosis.*
*(F)*
The original question: *What is involved in the cellular process of mitosis?
Options:
- (A) Most plants
- (B) layers of fat
- (C) A computer
- (D) Energy.
- (E) Chemical energy
- (F) centrioles
- (G) Energy
- (H) animals*
Logic of a solution: *All chemical reactions require activation energy to get started. Catalysts lower the activation energy for reactions. Catalysts help chemical reactions to get started.*
*(C)*
The original question:
*What do catalysts do?
Options:
- (A) metabolic reaction
- (B) breathe
- (C) get chemical reactions started
- (D) Slowing the transfer of heat
- (E) A compound that donates proton
- (F) fertilize eggs
- (G) have a positive impact on the environment
- (H) inhibit chemical reactions*