Q: Q: What structures receive blood from the atria and pump it out of the heart? A:

OPTIONS:
- valves
- muscles
- Vascular Fibers
- ventricles

A: ventricles

input: OPTIONS:
- gas
- mercury
- glass
- dust Now, answer this question: Q: Like the other outer planets, neptune has rings of ice and what? A:
A:
output: dust

Q: Are the majority of archaea chemotrophs or photosynthetic? A:

OPTIONS:
- photosynthetics
- neither
- autotrophs
- chemotrophs

Answer: chemotrophs

Problem: OPTIONS:
- digestive system
- reproductive system
- respiratory system
- cardiovascular system
Q: Q: What is the closed circulatory system of humans and other vertebrates called? A:
Answer: cardiovascular system

Problem:OPTIONS:
- glacial water
- fresh water
- spring water
- seawater

Q: What water is about 3.5% salt? A:
****
A: seawater

Problem:OPTIONS:
- diluting
- hydrating
- concentrating
- dehydrating

Q: The strong affinity of concentrated sulfuric acid for water makes it a good agent of what? A:
****
A:
dehydrating