Line 1: *Fertilization occurs when sperm swim to an egg inside an archegonium. Gametes in males are called sperm, and in women commonly referred to as eggs. Fertilization occurs when male gametes swim to an egg.*
*(E)*
Line 2: *What occurs when a male gamete swims to an egg?
Options:
- (A) permineralization
- (B) competition
- (C) movement
- (D) rapid expansion
- (E) fertilization
- (F) birth
- (G) copulation
- (H) ovulation*

Logic of a solution: *Bird beaks are generally adapted for the food they eat. Birds have a beak or a bill. Bird bills are generally adapted for the food they eat.*
*(A)*
The original question: *What part of a bird's body is generally adapted to the kind of food that they eat?
Options:
- (A) bill
- (B) skin
- (C) growth
- (D) sugar
- (E) fat
- (F) H 2 O
- (G) organ
- (H) muscle*

Line 1: *Macroevolution occurs over geologic time above the level of the species. And geologic time is very, very slow. Macroevolution occurs very, very slowly above the level of the species.*
*(B)*
Line 2: *Macroevolution occurs how above the level of the species.
Options:
- (A) swiftly
- (B) slowly
- (C) quickly
- (D) forces
- (E) never
- (F) ferns
- (G) animals
- (H) three*

Logic of a solution: *Fertilization occurs when a sperm and an egg fuse to form a diploid zygote. Male gametes are called sperm. Fertilization occurs when a male gamete and an egg fuse together to form a diploid zygote.*
*(D)*
The original question: *What is formed when a male gamete and an egg fuse together?
Options:
- (A) Plant reproduction
- (B) simple zygote
- (C) spread flower seeds
- (D) diploid zygote
- (E) Chemical energy
- (F) peachleaf willow
- (G) duplex zygote
- (H) reproductive zygote*

Line 1: *Balance is the ability to sense and maintain body position. Another part of the inner ear is used for balance. The inner ear helps with sensing and maintaining body position.*
*(C)*
Line 2: *This helps with sensing and maintaining body position:
Options:
- (A) lightheaded
- (B) sweating
- (C) inner ear
- (D) cochlea
- (E) four limbs
- (F) nerves
- (G) Riding a bike
- (H) dizzy*

Line 1: *Amphibians have a relatively complex circulatory system with a three-chambered heart. All frogs are amphibians. Frogs have a three-chambered heart.*
*(F)*
Line 2:
*Frogs have a _-chambered heart.
Options:
- (A) alveoli
- (B) organ
- (C) ovaries
- (D) oxygen
- (E) edible
- (F) three
- (G) nektar
- (H) CO 2*