Line 1: *Viruses contain DNA but not much else. DNA DNA is deoxyribonucleic acid. Viruses contain deoxyribonucleic acid, but not much else.*
*(H)*
Line 2: *What do viruses contain the most of?
Options:
- (A) Chemical energy
- (B) layers of fat
- (C) ribonucleic acid
- (D) cytoplasm
- (E) germs
- (F) harmful substances
- (G) deadly and devastating
- (H) deoxyribonucleic acid*

Logic of a solution: *Introns are regions that do not code for proteins. Prokaryotes lack introns, whereas eukaryotes contain introns. Prokaryotes lack regions that do not code for proteins, while eukaryotes do have them.*
*(G)*
The original question: *Prokaryotes lack regions that do not code for proteins, while this type of living being has them:
Options:
- (A) bioaerosols
- (B) layers of fat
- (C) orchids
- (D) animals
- (E) critical organs
- (F) sensory neurons
- (G) eukaryotes
- (H) it needs them*

Line 1: *Most invertebrates have a nervous system. Jellyfish and insects are invertebrates. Jellyfish have a nervous system.*
*(B)*
Line 2: *What has a nervous system?
Options:
- (A) Nerve tonic
- (B) Jellyfish
- (C) Air
- (D) fur seals
- (E) Cardiovascular system
- (F) animals
- (G) chickens
- (H) elephants*

Logic of a solution: *Most protists have motility. Protists Protists are single-celled organisms. Most single-celled organisms are motile.*
*(D)*
The original question: *What is one thing most single-celled organisms have in common?
Options:
- (A) Energy
- (B) glucose
- (C) bacteria
- (D) motility
- (E) Energy.
- (F) heat energy
- (G) resistance
- (H) warmth*

Line 1: *Most modern gymnosperms are trees with woody trunks. Gymnosperms are the most ancient seed plants. The most ancient seed plants are trees with woody trunks.*
*(H)*
Line 2: *The most ancient what are trees with woody trunks?
Options:
- (A) it needs them
- (B) leafy greens
- (C) more abundant
- (D) Leeuwenhoek
- (E) flowering buds
- (F) pollen
- (G) graptolites
- (H) seed plants*

Line 1: *Animals adapt to cold temperatures. And in winter it s very cold. In winter animals can adapt.*
*(E)*
Line 2:
*What do animals try do in winter?
Options:
- (A) shed fur
- (B) expand
- (C) ligt
- (D) rest
- (E) adapt
- (F) use an adapter
- (G) survive
- (H) die*