Answer:
nitrogen base
Explanation:
as it is nitrogen that is fixed to make protein bonds
ANSWER FOR QUESTION 3: The answer would be B.) because work or energy, is equal to the work done by a force, like the ball.
ANSWER FOR QUESTION 4: The answer would be D.) because when a ball roles down a hill the work to push that ball can transfer energy between the ball or other objects and cause the change in the total amount of energy used.
ANSWER FOR QUESTION 5: The answer is mechanical, because both physical and constant, kenitic and potential.
The most important role of lipids is to store energy.
A presumptive Test presumes the pet presence of the question substance it is useful because it tells the drug is used false positive is possible meaning that the test result is positive but the substance is not present.
