Logic for the Q&A below: Biodiversity increases the productivity and stability of ecosystems. Biodiversity is basically genetic diversity. Genetic diversity increases the productivity and stability of ecosystems.
Q: What increases the productivity and stability of ecosystems?
Options:
- (A) Fully cooking the oysters
- (B) genetic uniformity
- (C) genetic diversity
- (D) extinction
- (E) agriculture
- (F) disease
- (G) Earth orbiting the Sun
- (H) recycling
A: (C)
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Logic for the Q&A below: Urine is the liquid waste product of the body that is excreted by the urinary system. Acid urine is usually darker thatn alkaline urine. Liquid waste can be acidic.
Q: What can liquid waste be?
Options:
- (A) gas
- (B) Gaseous
- (C) Solid
- (D) Acidic
- (E) acid rain
- (F) expelled
- (G) Static
- (H) dangerous
A: (D)
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Logic for the Q&A below: Viruses cannot reproduce by themselves. Viruses attach themselves to cells and reproduce. Viruses cannot make copies of themselves alone. They need to attach themselves to cells.
Q: How can viruses make copies of themselves?
Options:
- (A) A compound that donates proton
- (B) attach themselves to cells
- (C) have sex with another virus
- (D) distances themselves from cell
- (E) attach themselves to viruses
- (F) it needs them
- (G) rapid expansion
- (H) By wind and rain
A: (B)
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Logic for the Q&A below: Ejaculation occurs when muscle contractions propel sperm from the epididymes. An egg is fertilized by sperm. Eggs are fertilized after ejaculation.

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
Q: 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
A: (A)
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