The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelope them.
<span>Actually the developing offspring in the eight week of pregnancy is medically know as a fetus,Where the lungs of the baby are nearly developed, and baby continues to grow and mature, then reflexes of work starts woking slowly, after which baby prepares itself for delivery in next few days.</span>
Answer:
Some substance in the infectious S strain could change the harmless R strain into the more lethal form.
Explanation:
These first type of experiments where crucial to advance in DNA knowledge.
In one experiment, they treated the material with enzymes that destroy all proteins. This is important because scientist notice that there was something else that was causing the strain to change into a lethal form and was heritable (DNA). Know a days we know that plasmids are responsible for such transformation.
