input: OPTIONS:
- booms
- stones
- shoots
- projectiles Now, answer this question: Q: What are objects that are launched into the air called? A:
A:
output: projectiles

Q: What is controlled by regulatory proteins that bind to regulatory elements on dna? A:

OPTIONS:
- amino acids
- mRNA
- substance transcription
- gene transcription

Answer: gene transcription

Problem: OPTIONS:
- liquid bond
- covalent bond
- galactic bond
- metallic bond
Q: Q: What is the force of attraction between a positive metal ion and valence electrons? A:
Answer: metallic bond

Problem:OPTIONS:
- turtles
- snakes
- newts
- toads

Q: Moist skin distinguishes frogs from what animal with dry, bumpy skin? A:
****
A: toads

Q: What are the chemical messengers used to communicate between cells? A:
OPTIONS:
- membranes
- peptides
- neurons
- hormones
hormones

Q: What are the three most common protective devices? A:
OPTIONS:
- fuses , circuit breaks & surge claws
- tranistors, resistors & diodes
- fuses , fabrication breaks & surge protectors
- fuses, circuit breaks & surge protectors

Answer:
fuses, circuit breaks & surge protectors