Vertebrates have closed circulatory systems their blood flows through blood vessels like veins and arteries and they have a heart to push the blood around the body. thats why the human circulatory is a closed system
Answer:
they store energy from fat is the answer.
Explanation:
Answer:
<h2>4. to monitor changes to the problem.</h2>
Explanation:
Measuring objectives is measure the progress, that why "to monitor changes to the problem" is the answer.
When we are setting objectives, these need to be measurable, because monitoring is crucial. This way, we can have a particular approach to events and see if objectives are having the expected performance.
