Child proof means that its child-approved, meaning that its made safe for children.
If the inner lining of the air sacs neither thin nor highly vascularized, then it can be inferred that AIR SACS ARE CANNOT BE THE SITES OF GASEOUS EXCHANGE BETWEEN AIR AND BLOOD. Air sacs are generally lined with mucus and surrounded with blood capillaries.
In case of birds, air sacs play an important role in respiratory system.
Scientists are helping to improve understanding of how rocks in Earth's hot, deep interior enable the motions of tectonic plates, which regulate the water cycle that is critical for a habitable planet.
Nerve cells release neurotransmitters across gaps and secretion of proteins and wastes: it’s Exocytosis
It seems that you have missed the necessary options for us to answer this question so I had to look for it. Anyway, here is the answer. If one parent is homozygous for a recessive allele and one parent is heterozygous for a recessive allele in an autosomal dominant genetic disorder, the chance that <span>a child of those two parents will have the disorder is 75%. Hope this helps.</span>
