Q: In an environment, symbiosis, competition, and relying on other organisms for food are examples of what? A:

OPTIONS:
- collaboration
- commensalism
- adaptation
- interaction

Answer: interaction

Problem: OPTIONS:
- The brain stem
- holy callosum
- disruption callosum
- corpus callosum
Q: Q: What connects the two hemispheres of the brain? A:
Answer: corpus callosum

Problem:OPTIONS:
- spiders
- reptiles
- crustaceans
- arachnids

Q: While similar to insects, what eight-legged invertebrates lack antennae or wings? A:
****
A: arachnids

Q: What monitors the level of carbon dioxide in the blood? A:
OPTIONS:
- the lungs
- the heart
- the kidneys
- the brain stem
the brain stem

Q: Another name for table salt is? A:
OPTIONS:
- hydrogen chloride
- carbon chloride
- dioxide chloride
- sodium chloride

Answer: sodium chloride

input with options: Q: In a controlled scientific study, what do you call a factor that can take on different values? A:
OPTIONS:
- output
- input
- vector
- variable
output:
variable