They are both highly selective,most of the time what binds to them. Think of it as a lock and key, if the key fits the lock and it turns then it does what it needs.
The right answer has to do with birth defects and in this case the defect wouldn't be hereditary nor genetic so i think the best answer is (D) underdeveloped lungs
1. False
2.True
3.False
4.False
5.False
<span>The upper chamber is called an atrium (or auricle), and the lower chamber is called a ventricle. The two atria act as receiving chambers for blood entering the heart; the more muscular ventricles pump the blood out of the heart.</span>
