Logic of a solution: *Cell division is more complex in eukaryotes than prokaryotes. All plants are eukaryotes. Cell division is more complex in plants than prokaryotes.*
*(F)*
The original question: *Cell division in what is more complex than cell division in prokaryotes?
Options:
- (A) bacteria
- (B) archaea
- (C) animals
- (D) SO2
- (E) fungi
- (F) plants
- (G) complex
- (H) E. coli*

Line 1: *Some birds are pollinators that co-evolved with plants. Bird A bird is an animal with feathers. Some animals with feathers are pollinators.*
*(H)*
Line 2: *Some what with feathers are pollinators?
Options:
- (A) bees
- (B) tortoises
- (C) fish
- (D) snakes
- (E) strong
- (F) ducks
- (G) Vanes
- (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*

Line 1: *Translation reads the genetic code in mRNA and makes a protein. Gene expression can be regulated at the level of translation of an mRNA into a protein. Translation reads and regulates gene expression.*
*(E)*
Line 2: *What process reads and regulates gene expression?
Options:
- (A) organs
- (B) sensory neurons
- (C) A computer
- (D) Plants growth
- (E) translation
- (F) sweating
- (G) heat or cold
- (H) Most plants*

Logic of a solution: *Testosterone stimulates the reproductive organs to develop into male organs. Androgens are male hormones, like testosterone. Male hormones stimulated the reproductive organs to develop into male organs.*
*(H)*
The original question: *What stimulates the reproductive system to form male organs in growth?
Options:
- (A) Chemical energy
- (B) barnacles
- (C) Electrical energy
- (D) a doorbell
- (E) sensory neurons
- (F) peachleaf willow
- (G) Veins and arteries.
- (H) male hormones*

Logic of a solution: *Animals adapt to cold temperatures. Temperatures are moderate in summer and COLD in winter. Animals adapt to the coolness in the winter.*
*(F)*
The original question:
*What do animals do in the winter?
Options:
- (A) Release energy
- (B) running and lifting
- (C) it keeps an organism warm
- (D) adapt to warm weather
- (E) adapt to extreme heat
- (F) adapt to coolness
- (G) shed fur
- (H) by making heat*