Answer:
A. temperature of the reaction
B. amount of enzyme
E. pH of the reaction
Explanation:
Temperature should be kept constant because enzymes operate at different activity rates depending on the temperature. The same goes for the pH as well with different enzymes having different optimal pH levels.
The amount of enzyme should be kept constant as well because different concentrations of enzymes can determine how fast the reaction will occur.
Essentially anything that could affect enzyme activity apart from substrate concentration should be kept constant.
They would most likely be metamorphic rocks due to the compaction and heat.
Answer:
Mechanical Support.
Protective.
Metabolic.
Explanation:
Mechanical Support. Bones provide a framework for the attachment of muscles
Protective. Bones such as the skull and rib cage protect vital organs from injury.
Metabolic. Mineral storage.
does it ask what are they doing moving part sliding anything like that?