input: OPTIONS:
- antibodies
- acids
- saliva
- hormones Now, answer this question: Q: The endocrine system consists of cells, tissues, and organs that secrete what critical to homeostasis? A:
A:
output: hormones

Q: What are carbonated beverages pressurized with? A:

OPTIONS:
- helium
- dioxide
- hydrogen
- co2

Answer: co2

Problem: OPTIONS:
- nematodes
- vegetarians
- decomposers
- omnivores
Q: Q: Mammals are either herbivores, carnivores or what? A:
Answer: omnivores

Problem:OPTIONS:
- metamorphosis
- creep
- leaching
- weathering

Q: Over time, what changes solid rock into pieces? A:
****
A: weathering

Q: What is the area around the nucleus of an atom where electrons are likely to be, called? A:
OPTIONS:
- electron wave
- electron membrane
- electron pocket
- electron cloud
electron cloud

Q: Besides the concentration of dissolve oxygen and nutrients in the water, what other factor limits aquatic organisms? A:
OPTIONS:
- rainfall
- temperature
- lake size
- availability of sunlight

Answer:
availability of sunlight