The respiratory system brings air into the lungs supplying the blood with oxygen. Oxygen is carried throughout the body to the organs and keeps the heart pumping and when the blood circulates back to the lungs the process starts over again.
Answer:
B
Explanation:
DNA helps code for our proteins. The way DNA is passed is from parent to offspring. DNA Nitrogenous bases for each person is going to be different.
Hope this helped :)
Here’s what I found on quizlet
Answer:
B
Explanation:
i did this this year in my 9th grade tech class and got it right
<span>Hydrocarbon structure</span>
