Answer: 2
explanation: enzymes are known as proteins used to break down proteins and other macromolecules during digestion
True
because producers make their own food without depending on others. So in this case plants are producers is true because they make their own food with photosynthesis.
Answer:
B. Brain and spinal cord
Explanation:
because we need both in order to survive and work properly.
Answer:
C) Re-do the measurements, several times, and take the average density before making a decision.
Explanation:
For the correct identification of the metal, weather its nickel or copper, Carl should repeat the experiment several times and take the average density before making the decision. It is important because it reduces the chance of error and ensure the data integrity. The more the sample size is, lessen would be the error.
