Problem:OPTIONS:
- migrating pain
- migration paths
- our nearest star
- flying schedule
- Something to move
- travel plans
- important habitats
- their hosts

Fact 1: Earth 's magnetic patterns are used for finding locations by animals that migrate. Fact 2: Animated maps show the birds flying along their actual migration paths. Given the two facts above, earth's magnetic patterns are used so that birds can fly along their what?
****
A: migration paths

Problem:OPTIONS:
- mosquitoes
- bioaerosols
- animals
- alpacas
- bats
- rabbits
- fleas
- insects

Fact 1: Some precipitation that falls on land may soak into the ground, becoming groundwater. Fact 2: Stagnant water is often a breeding ground for mosquitoes. Given the two facts above, some precipitation that falls on land may soak in, becoming a breeding place for what?
****
A: mosquitoes

Problem:OPTIONS:
- resistance
- sweating
- Leptospirosis
- breast milk
- smoking tobacco
- the environment
- competition
- fur seals

Fact 1: Passive immunity lasts only as long as the antibodies survive in body fluids. Fact 2: Breast Milk contains antibodies. Given the two facts above, what can make passive immunity last?
****
A: breast milk

Problem:OPTIONS:
- stems
- seeds
- leaves
- roots
- bees
- white
- flowers
- food

Fact 1: Reproduction is the process by which organisms give rise to offspring. Fact 2: Flowers are a plant's reproductive organs. Given the two facts above, what do plants produce offspring with?
****
A:
flowers