input with options: Fact 1: The mass of an object causes the gravitational force exerted by that object. Fact 2: Gravitational mass and inertial mass are identical. Given the two facts above, the mass of an object causes force exerted by the object which can be described as?
OPTIONS:
- Inertial mass
- Velocity
- kinetic energy
- Energy.
- acceleration
- friction
- supersonic
- Force
output: Inertial mass

Q: Fact 1: Antigens are molecules that the immune system recognizes as foreign to the body. Fact 2: Antibodies are produced to fight antigens. Given the two facts above, what happens when the immune system recognizes a foreign substance?

OPTIONS:
- an area swollen with pus
- The immune system fails
- irradiation
- Bacteria dies
- Antibodies are formed
- major threat to health
- Something that causes allergies
- Viruses reproduce

A: Antibodies are formed

input: OPTIONS:
- fields
- humans
- bushes
- bats
- a path
- skin
- retina
- Birds Now, answer this question: Fact 1: Pressure receptors are found mainly in the skin. Fact 2: Sensory Receptors A receptor is any structure specialized to detect a stimulus. Given the two facts above, something specialized to detect a stimulus is found mainly where?
A:
output: skin

Fact 1: Adult worms go through a major transformation to develop reproductive organs. Fact 2: Marine annelid worms have larvae called trochophores that swim about by means of cilia. Given the two facts above, marine annelids can make a swimming larvae called what?

OPTIONS:
- barnacles
- survive
- graptolites
- epidermal
- Something to move
- a trochophore
- fertile
- permineralization

Answer: a trochophore

Problem: OPTIONS:
- duplicate itself
- Makes the air dirtier
- Makes food
- Cleans the air
- converting electricity to heat
- to move people
- Plant growth is reduced
- Lengthens tree life
Q: Fact 1: Creating paper requires cutting down trees. Fact 2: Trees clean and cool the air. Given the two facts above, what does creating paper do?
Answer: Makes the air dirtier

Fact 1: Echinoderms lack a centralized nervous system. Fact 2: Starfish and sea urchins are also echinoderms. Given the two facts above, what lacks a centralized nervous system?

OPTIONS:
- Damaged hearing
- Pesticides
- Cats
- insects
- Sea urchins
- barnacles
- Humans
- Fish

Answer:
Sea urchins