Line 1: *Mutations are essential for evolution to occur. Evolution Change through time. Mutations are essential for changes to occur.*
*(B)*
Line 2: *What is needed for changes to occur?
Options:
- (A) exercise
- (B) mutations
- (C) growth
- (D) healthy animals
- (E) environment
- (F) evaporation
- (G) Exfoliation
- (H) births*

Logic of a solution: *Reproduction is the process by which living things give rise to offspring. Seed refers to offspring, children. Living things use reproduction to have children.*
*(F)*
The original question: *How do living things have children?
Options:
- (A) death
- (B) people
- (C) humans
- (D) babies
- (E) it needs them
- (F) reproduction
- (G) mitosis
- (H) production*

Line 1: *Ejaculation occurs when muscle contractions propel sperm from the epididymes. Male gametes are called sperm. Ejaculation occurs when muscle contractions propel male gametes from the epididymes.*
*(H)*
Line 2: *What is it called when male gametes are propelled because of muscle contractions?
Options:
- (A) competition
- (B) rapid expansion
- (C) intercourse
- (D) thrusting
- (E) a wave
- (F) reproductions
- (G) A Greek letter
- (H) ejaculation*

Logic of a solution: *Trees have woody stems covered with bark. During the stripping, the protective layer of inner bark is removed. Trees have woody stems covered with a protective layer.*
*(D)*
The original question: *Trees have woody stems covered with what?
Options:
- (A) food and shelter
- (B) smooth ridges
- (C) looseness
- (D) protective layer
- (E) Organic compounds
- (F) plastic sheet
- (G) heat energy
- (H) thin metal*

Line 1: *Cells vary in size as well as shape, but all cells are very small. An embryo is so small that it requires a microscope in order to be seen. A cell requires a microscope in order to be seen.*
*(B)*
Line 2: *What requires a microscope in order to be seen?
Options:
- (A) fungi
- (B) cells
- (C) mildew
- (D) gasoline
- (E) fungus
- (F) matter
- (G) telescopes
- (H) sunlight*

Line 1: *Precipitation falls on the windward side of the mountain range. For example, the windward side of a peninsula is the windiest side. The windiest side of a mountainous peninsula would have the most precipitation.*
*(C)*
Line 2:
*The windiest side of a mountainous peninsula also has the most of what?
Options:
- (A) mountain
- (B) peninsula
- (C) precipitation
- (D) body water
- (E) heat energy
- (F) rainfall
- (G) windward
- (H) kinetic energy*