Fact 1: Arthropods are the largest phylum of invertebrates. Fact 2: Invertebrates are animals without a backbone. Given the two facts above, arthropods are the what without a backbone?

OPTIONS:
- largest phylum
- graptolites
- insects
- largest mammals
- largest organs
- solid, liquid, gas
- animals
- largest species

Answer: largest phylum

Problem: OPTIONS:
- plants
- humans
- people
- phytoplankton
- fungi
- cats
- fish
- water
Q: Fact 1: Heterotrophs get food by eating other living things. Fact 2: All fish are heterotrophic. Given the two facts above, what gets food by eating other living things?
Answer: fish

Problem:OPTIONS:
- disease
- The atmosphere
- heat energy
- air pollution
- energy barrier
- Bodily water
- Dehydration
- bacteria

Fact 1: Abreathing mask is used for keeping harmful particles from entering the respiratory system. Fact 2: Air pollution is caused by the build-up of harmful gases and particles in the air. Given the two facts above, what does a gas mask keep out?
****
A: air pollution

Fact 1: Annelids have the amazing capacity to regrow segments that break off. Fact 2: Annelids include earthworms and leeches. Given the two facts above, what animal can regrow middle segments when broken?
OPTIONS:
- amoeba
- geckos
- humans
- insects
- Wasps
- worms
- toads
- snakes
worms

Fact 1: Trees have woody stems covered with bark. Fact 2: Stems of plants include trunks and branches. Given the two facts above, what part of a tree would be woody and covered in bark?
OPTIONS:
- shrub beds
- the leaves
- the roots
- cacti
- a sapling
- Chlorophyll
- the trunk
- four limbs

Answer: the trunk

input with options: Fact 1: An animal requires warmth for survival. Fact 2: Wollies are made of fur and worn for warmth. Given the two facts above, what physical feature of an animal can help it survive?
OPTIONS:
- heat
- coat
- fur
- fire
- body
- nourishment
- size
- housing
output:
fur