Q: What is the main difference between eukaryotic and prokaryotic cells? A:
OPTIONS:
- prokaryotic cells have a nucleus
- eukaryotic cells have a flagella
- eukaryotic cells have a cell wall
- eukaryotic cells have a nucleus

Answer: eukaryotic cells have a nucleus

Question: Q: Constriction and dilation allow the circulatory system to change the amount of blood flowing to which body parts? A:
OPTIONS:
- arteries
- tissues
- muscles
- organs
Answer: organs

input with options: Q: Dragonflies were one of the first insects to do what? A:
OPTIONS:
- swim
- fight
- sexually reproduce
- fly
output: fly

Q: Q: Energy is the capacity to do work or to produce what? A:

OPTIONS:
- vibration
- light
- humidity
- heat

A: heat

input: OPTIONS:
- gravity
- fertilizer use
- population density
- soil type Now, answer this question: Q: Along with climate, this also influences the type of vegetation that can grow in the region? A:
A:
output: soil type

Question: Q: What is the substance called whenatoms of different elements join together? A:
OPTIONS:
- crusts
- crystals
- plants
- compounds
Answer:
compounds