Q: In an atom, what two major types of particles are located in the nucleus? A:

OPTIONS:
- electrons and neutrons
- molecules and neutrons
- ions and electrons
- protons and neutrons

Answer: protons and neutrons

Problem: OPTIONS:
- nucleus
- fetus
- gamete
- embryo
Q: Q: Endosperm usually develops before the what does? A:
Answer: embryo

Problem:OPTIONS:
- teeth
- enzymes
- hormones
- venom

Q: What do puffer fish produce to protect itself? A:
****
A: venom

Q: What are the two unique features of mollusks? A:
OPTIONS:
- antennae and pseudopod
- pseudopod and mantle
- radula and antennae
- mantle and radula
mantle and radula

Q: The skin is a familiar organ made of what kind of tissue? A:
OPTIONS:
- innate tissue
- recurrent tissue
- aberrant tissue
- epithelial tissue

Answer: epithelial tissue

input with options: Q: What makes a complete orbit around the earth once every 29 1/2 days? A:
OPTIONS:
- Mars
- the Sun
- Gemini
- the moon
output:
the moon