Q: Q: Photoautotrophs including (a) plants, (b) algae, and (c) cyanobacteria synthesize their organic compounds via photosynthesis using sunlight as this? A:

OPTIONS:
- light source4
- heating source
- fuel source
- energy source

A: energy source

input: OPTIONS:
- leaves
- toxins
- fibers
- spores Now, answer this question: Q: Within the petals are two whorls of fertile floral organs that produce what? A:
A:
output: spores

Q: What is the term for a test to see if a scientific explanation is right or wrong? A:

OPTIONS:
- invention
- hypothesis
- generation
- experiment

Answer: experiment

Problem: OPTIONS:
- phosphate
- glucose
- oxygen
- chloride
Q: Q: In the lungs, bicarbonate is transported back into the red blood cells in exchange for what? A:
Answer: chloride

Problem:OPTIONS:
- cells
- biomes
- plants
- soil

Q: Water molds mostly live in water or moist? A:
****
A: soil

Problem:OPTIONS:
- modification
- constriction
- expression
- articulation

Q: Any place at which two bones are joined is called a what? A:
****
A:
articulation