Problem: OPTIONS:
- Earth revolving around the sun
- The area was once underwater
- gastropod shells
- it keeps an organism warm
- remains of prehistoric life
- fertilization occurs
- allow growth
- It helps them survive
Q: Fact 1: Fertilization occurs when sperm swim to an egg inside an archegonium. Fact 2: Each archegonium contains a single egg that is embedded in the prothallus. Given the two facts above, what happens inside the single egg embedded inside the prothallus ?
Answer: fertilization occurs

Problem:OPTIONS:
- in the dark
- an object
- humans
- in a closet
- outside
- in a hole
- sun's heat
- dormant

Fact 1: If something is outside during the day then that something will receive sunlight. Fact 2: Exposure to excessive sunlight can cause skin rashes or skin burns. Given the two facts above, something where during the day may receive skin rashes or burns?
****
A: outside

Fact 1: Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain. Fact 2: Coal-fired plants Are power stations which burn coal to generate electricity. Given the two facts above, power stations which generate electricity produce gases in the atmosphere cause what?
OPTIONS:
- drought
- Pollution
- storms
- Temperature
- heat
- contamination
- acid rain
- climate
acid rain

Fact 1: Cells vary in size as well as shape, but all cells are very small. Fact 2: Atoms are tiny particles that are too small to see. Given the two facts above, what size are cells?
OPTIONS:
- either huge or tiny
- non existent
- dense
- large
- white
- tiny
- dead
- albino

Answer: tiny

Question: Fact 1: Viruses often infect bacteria. Fact 2: Bacteria are normally classified as either 'good' bacteria or 'bad' bacteria. Given the two facts above, how many types can viruses infect?
OPTIONS:
- mice
- pigs
- bird
- RNA
- ova
- tiny
- HPV
- Two
Answer: Two

input: OPTIONS:
- heat
- calories
- carbohydrates
- illness
- parasites
- fat
- resistance
- antigens Now, answer this question: Fact 1: Antibodies are large, Y-shaped proteins that recognize and bind to antigens. Fact 2: Antibodies are produced to fight antigens. Given the two facts above, what do proteins fight?
A:
output:
antigens