Answer:
Blood flows through smaller tubes to mimic the actual rate of blood flow in the body. This makes the dialysis machne safe for the body. Th dialysis machine can also adjust pressure in accordance of a persons blood pressure
Explanation:
B - To live in less extreme environments than most Archaebacteria.<span>♥</span>
To control the crossing of traits. He wanted to make sure that certain variables in his experiments remained unchanged. If they had changed, the experiment would have to be scraped and redone.
Primitive traits<span> are those inherited from distant ancestors. </span>Derived traits<span> are those that just appeared (by mutation) in the most recent </span>ancestor<span> -- the one that gave rise to a newly formed branch. Of course, what's primitive or </span>derived<span> is relative to what branch an organism is on.</span>
