Transmission of nerve impulses
#1 is CO2 exchange. CO2 is diffusing from the blood into the alveoli for expiration.
#2 is O2 exchange. O2 is diffusing from the alveoli into the blood to be carried to the tissues.
The fact of many different things or people being included in something; a range of different things or people
Diversity definition, the state or fact of being diverse; difference; unlikeness: diversity of opinion
<span>The most important role of this peculiar double helix structure of DNA is to facilitate replication....in preparation of cell division each of the 2 strands acts as a template thus facilitating precise copying of genes....in the Nature(1953), </span>
Metaphase I believe that is the answer to your question
