Problem: OPTIONS:
- cold
- temperature
- humidity
- heat
Q: Q: What is the exchange of energy from one part of the universe to another called? A:
Answer: heat

Problem:OPTIONS:
- helium toxicity
- carbon toxicity
- nitrogen toxicity
- oxygen toxicity

Q: What exposure risk comes with aerobic respiration? A:
****
A: oxygen toxicity

Q: Which therapy uses viruses to genetically modify diseased cells and tissues? A:
OPTIONS:
- chemotherapy
- digestive therapy
- oxygen therapy
- viral therapy
viral therapy

Q: What does rearrangements of chromosomes contribute to the emergence of? A:
OPTIONS:
- clones
- extinction
- fewer species
- new species

Answer: new species

Question: Q: Which vitamin is made in the skin when it is exposed to sunlight? A:
OPTIONS:
- Vitamin C
- Vitamin B1
- Riboflavin
- vitamin d
Answer: vitamin d

input: OPTIONS:
- nucleus
- inhibitors
- electrodes
- catalysts Now, answer this question: Q: What speeds up chemical reactions inside cells? A:
A:
output:
catalysts