Line 1: *Fertilization occurs when a sperm and an egg fuse. Sperm and eggs are cells known as gametes. Fertilization occurs when gametes fuse.*
*(F)*
Line 2: *Fertilization occurs when _ fuse.
Options:
- (A) fertile
- (B) sperm ducts
- (C) heat
- (D) eggs
- (E) seeds
- (F) gametes
- (G) pollen
- (H) ovaries*
Logic of a solution: *Some viruses have an envelope of phospholipids and proteins. Phospholipases are the enzymes that degrade phospholipids . Some viruses have an envelope of enzymes and proteins.*
*(B)*
The original question: *What might have an envelope of proteins and enzymes?
Options:
- (A) fur seals
- (B) some viruses
- (C) Most plants
- (D) a fish
- (E) animal transport
- (F) animals
- (G) chickens
- (H) it needs them*
Line 1: *Evolution is a change in the characteristics of living things over time. Biological evolution is slow, while corporate evolution is fast. The change in the characteristics of living things over time is slow.*
*(D)*
Line 2: *What is the speed of the change in the characteristics of living things over time?
Options:
- (A) Jet speed.
- (B) Speed of light.
- (C) long
- (D) Slow.
- (E) Mach speeds.
- (F) slows
- (G) speed
- (H) years*
Logic of a solution: *Adult tunicates are barrel-shaped. Tunicates differ strongly in appearance between the adult and larva. Tunicates differ strongly in appearance and are barrel shaped.*
*(H)*
The original question: *What differ strongly in appearance and are barrel shaped?
Options:
- (A) bears
- (B) barnacles
- (C) abdomens
- (D) oxen
- (E) Leptospirosis
- (F) cacti
- (G) burrs
- (H) tunicates*
Line 1: *Mammals breathe with the help of a diaphragm. Belly breathing uses the diaphragm, which helps relax the lungs. Mammals breathe by relaxing the lungs.*
*(A)*
Line 2: *What breathes by relaxing the lungs?
Options:
- (A) mammals
- (B) tortoises
- (C) dogs
- (D) chickens
- (E) ducks
- (F) humans
- (G) crocodiles
- (H) animals*
Line 1: *Testosterone stimulates the reproductive organs to develop into male organs. Examples of anabolic hormones are testosterone and nandrolone. Certain anabolic hormones stimulate the reproductive organs to develop into male organs.*
*(D)*
Line 2:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
*What stimulates the reproductive organs to develop into male organs?
Options:
- (A) Something coming from a gland
- (B) Chemical energy
- (C) A compound that donates proton
- (D) certain anabolic hormones
- (E) Something made from fermented ricce
- (F) Electrical energy
- (G) heat produced
- (H) sensory neurons*