Problem: OPTIONS:
- chlorophyll
- pesticides
- acids
- hormones
Q: Q: What controls every aspect of plant growth and development to some degree? A:
Answer: hormones

Problem:OPTIONS:
- bone disease
- physiological disease
- abnormal disease
- cardiovascular disease

Q: Hypertension, or high blood pressure, can increase the risk of what? A:
****
A: cardiovascular disease

Q: Halogens tend to form salts with what type of element? A:
OPTIONS:
- nonmetals
- metalloids
- man-made
- metals
metals

Q: When a solution freezes, only what particles come together to form a solid phase, while the presence of solute particles interferes with that process? A:
OPTIONS:
- pigment
- hydrogen
- diluent
- solvent

Answer: solvent

Question: Q: The velocity at the beginning of the time interval is called what? A:
OPTIONS:
- growing velocity
- internal velocity
- previous velocity
- initial velocity
Answer: initial velocity

input: OPTIONS:
- weight
- nitrogen
- adaptation
- oxygen Now, answer this question: Q: Birds have evolved a respiratory system that enables them to fly. flying is a high-energy process and requires a lot of this? A:
A:
output:
oxygen