Line 1: *Biomass is the total mass of organisms at a trophic level. Trophic level refers to the organisms position in the food chain. A biomass' position in the food chain is a trophic level.*
*(F)*
Line 2: *What is a biomass' position in the food chain called?
Options:
- (A) ecosystem
- (B) more abundant
- (C) action
- (D) food swamp
- (E) Chemical energy
- (F) Trophic level
- (G) permineralization
- (H) It decreases*

Logic of a solution: *Roots grow in length and width from primary and secondary meristem. Kids see the underground root systems of trees and then an aerial view of plants in the city. Underground systems grow in width and length.*
*(G)*
The original question: *What grow in width and length.?
Options:
- (A) crocodiles
- (B) sedimentary rocks
- (C) vegetation
- (D) remains of prehistoric life
- (E) swamp vegetation
- (F) shrub beds
- (G) underground systems
- (H) loose dirt*

Line 1: *Bone provides protection for soft tissues and internal organs. Vertebrae, ribs, appendages, and the jaw are endoskeletal bone. Ribs provide protection for internal organs.*
*(C)*
Line 2: *What provides protection for internal organs?
Options:
- (A) fur
- (B) cuticle
- (C) ribs
- (D) skin
- (E) plasma
- (F) brain
- (G) coats
- (H) fat*

Logic of a solution: *DNA contains genetic instructions for proteins, and RNA helps assemble the proteins. Genetic memory is inherited. DNA contains inherited instructions for proteins.*
*(D)*
The original question: *What type of acid contains inherited instructions for proteins?
Options:
- (A) HIV
- (B) p53
- (C) genetic acids
- (D) DNA
- (E) SNPs
- (F) protein acid
- (G) RNA
- (H) two*

Line 1: *Many plants respond to the days growing shorter in the fall by going dormant. After the autumnal equinox, days gradually shorten in the Northern Hemisphere. Many plants respond to the autumnal equinox by going dormant.*
*(C)*
Line 2: *Many plants go dormant during the
Options:
- (A) heat or cold
- (B) earth's revolving
- (C) autumnal equinox
- (D) colder and wetter
- (E) It helps them survive
- (F) cloudy and rainy weather
- (G) Plant growth is reduced
- (H) fire conditions*

Line 1: *Chemical bonds form when substances react with one another. Solvents are substances, usually liquid, that dissolve other substances. When one solvent reacts with another, chemical bonds form.*
*(C)*
Line 2:
*What is it called when one solvent combines with another, what forms?
Options:
- (A) chemical pair
- (B) permineralization
- (C) chemical bonds
- (D) a solute
- (E) chemical duo
- (F) substance bonds
- (G) Condensation
- (H) kinetic energy*