The description describes metaphase, so the next step is anaphase
The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelope them.
The Answers are
1. F
2. T
3. T
The two scientists that created the three-dimensional structure of DNA are James Watson and Francis Crick.
A. <span>Exposure to an antigen
Exposure to viruses and antigens led to the foundation of modern vaccination. Vaccination introduces an antigenic material that helps the ability of the immune system to adapt a specific pathogen, therefore leading to a long-term immunity.</span>