Line 1: *Chromosomes are coiled structures made of DNA and proteins. An egg or sperm with an extra chromosome or missing a chromosome is then made. Eggs and sperm have coiled structures made of DNA and proteins.*
*(B)*
Line 2: *What are one thing the combination of proteins and dna make up?
Options:
- (A) alleles
- (B) sperm
- (C) insects
- (D) embryos
- (E) fusion
- (F) PDAs
- (G) humans
- (H) complex*

Logic of a solution: *Sweating reduces body heat. Shivering produces heat in the body. Sweating and shivering have different effects on our core temperatures.*
*(B)*
The original question: *What will make human temperatures go in a different direction from what sweating would do?
Options:
- (A) humidity
- (B) shivering
- (C) improve
- (D) energy usage
- (E) a blazing fire
- (F) hot air
- (G) harm them
- (H) Damages them*

Line 1: *Freshwater biomes have water that contains little or no salt. Terrapins are freshwater turtles. Terrapins live in water that contains little or no salt.*
*(B)*
Line 2: *What lives in water that contains little or no salt?
Options:
- (A) animals
- (B) terrapins
- (C) a fish
- (D) Chlorophyll
- (E) bacteria
- (F) sharks
- (G) sodium
- (H) humans*

Logic of a solution: *Urine leaves the body through a sphincter in the process of urination. From the bladder, urine leaves the body. The bladder empties through a sphincter in the process of urination.*
*(C)*
The original question: *Urine has to pass through what as the bladder empties?
Options:
- (A) epidermal
- (B) body water
- (C) a sphincter
- (D) all liquids
- (E) mouth of rivers
- (F) alveoli
- (G) salt and water.
- (H) aqueous solution*

Line 1: *Ejaculation occurs when muscle contractions propel sperm from the epididymes. An egg is fertilized by sperm. Eggs are fertilized after ejaculation.*
*(A)*
Line 2: *When will an egg become fertilized?
Options:
- (A) After ejaculation
- (B) Fully cooking the oysters
- (C) allow growth
- (D) Earth orbiting the Sun
- (E) in the autumn season
- (F) colder and wetter
- (G) Plant reproduction
- (H) during the day*

Line 1: *Cancer cells divide more often than normal cells, and grow out of control. Cancer cells, however, grow out of control and develop into a tumor. Cancer cells divide more often than normal cells, and often develop into tumors.*
*(C)*
Line 2:
*Tumors are a collection of cancer what?
Options:
- (A) harmful
- (B) mutations
- (C) cells
- (D) toxins
- (E) three
- (F) Mass
- (G) oncogenes
- (H) ovaries*