input with options: Fact 1: Organs of excretion make up the excretory system. Fact 2: Digestive system Excretory system removes waste and toxic substances from blood. Given the two facts above, what removes waste from blood?
OPTIONS:
- exhaling
- Leptospirosis
- hemmhorage
- Acids
- excretion
- glucose
- bacteria
- respiration
output: excretion

input with options: Fact 1: All chemical reactions require activation energy to get started. Fact 2: Catalysts lower the activation energy. Given the two facts above, in what way does a catalyst help in chemical reactions?
OPTIONS:
- Generating heat
- lowered energy cost
- metabolic reaction
- heating liquids
- by making heat
- adding heat
- increases a body's strength
- preventing heat transfer
output: lowered energy cost

input with options: Fact 1: Cells are organized into tissues, and tissues form organs. Fact 2: Organs such as the stomach and liver also begin to develop. Given the two facts above, the liver is formed after cells for into?
OPTIONS:
- death
- humans
- Energy.
- tissue
- migrate
- grow
- recovery
- expelled
output: tissue

input with options: Fact 1: Pollen consists of tiny grains that are the male gametes of plants. Fact 2: Flowers are the sex organs of certain plants and hold the male and female gamete producing systems. Given the two facts above, pollen consists of tiny grains that are held within what?
OPTIONS:
- bees
- fruits
- vegetation
- flowers
- lmestone
- an object
- loose dirt
- leaves
output:
flowers