Question: Q: While matter is recycled, ecosystems need a constant input of what? A:
OPTIONS:
- heating
- food
- light
- energy
Answer: energy

input with options: Q: What is used during filtration to push fluids and solutes, from higher pressure areas to lower pressure areas? A:
OPTIONS:
- constructs pressure gradient
- limited pressure gradient
- magnesium pressure gradient
- hydrostatic pressure gradient
output: hydrostatic pressure gradient

Q: Q: If only one atom of a specific type is present what is not used? A:

OPTIONS:
- covalent bond
- consonant
- subset
- subscript

A: subscript

input: OPTIONS:
- connective system
- digestive system
- excretory system
- cardiovascular system Now, answer this question: Q: Atherosclerosis and coronary heart disease are examples of what type of body system disease? A:
A:
output: cardiovascular system

Q: In what form is most of the earth's freshwater? A:

OPTIONS:
- gas
- liqued
- steam
- frozen

Answer: frozen

Q: Q: What group of organisms was initially misclassified as plants because they also lack the ability to move, grow in soil, and have cell walls? A:

OPTIONS:
- protozoa
- algae
- gymnosperm
- fungi

A:
fungi