input: OPTIONS:
- prokaryotes
- algae
- arthropods
- protists Now, answer this question: Q: What produces almost one-half of the earth's oxygen through photosynthesis? A:
A:
output: protists

Q: What type of energy from a warm cola results in melting when it is transferred to the much colder ice? A:

OPTIONS:
- protective energy
- gaseous energy
- cyclic energy
- thermal energy

Answer: thermal energy

Problem: OPTIONS:
- the ovary
- the uterus
- the thyroid
- the hypothalamus
Q: Q: What item starts puberty in girls? A:
Answer: the hypothalamus

Problem:OPTIONS:
- jurassic
- precambrian
- cretaceous
- cenozoic

Q: About 50% of all animal species died off between the mesozoic and which other era? A:
****
A: cenozoic

Q: In science, we need to make observations on various phenomena to form and test what? A:
OPTIONS:
- assumptions
- theories
- variations
- hypotheses
hypotheses

Q: What mammalian class has the greatest ability to learn? A:
OPTIONS:
- apes
- reptiles
- rats
- humans

Answer:
humans