input with options: Q: What element is the most common element in the universe? A:
OPTIONS:
- carbon
- helium
- nitrogen
- hydrogen
output: hydrogen

Q: Q: What do you call a structure composed of two or more types of tissues that work together to do a specific task? A:

OPTIONS:
- cell
- marrow
- system
- organ

A: organ

input: OPTIONS:
- cell rejection
- anomalies
- mutation
- allergies Now, answer this question: Q: What occurs when the immune system attacks harmless substances that enter the body from the outside? A:
A:
output: allergies

Q: Which part of the brain secretes hormones that tell the pituitary gland either to secrete or to stop secreting its hormones? A:

OPTIONS:
- cerebrum
- hippocampus
- thalamus
- hypothalamus

Answer: hypothalamus

Problem: OPTIONS:
- water
- chlorophyll
- air
- light
Q: Q: Photoautotrophs use what energy source to self-manufacture their own food? A:
Answer: light

Q: Batteries produce voltage through what type of reaction? A:

OPTIONS:
- liquid
- non-chemical
- thermal
- chemical

Answer:
chemical