I believe the answer is B. <span>The antibodies on B cells bind to the antigens on the pathogen's surface.
</span>
Answer: happy birthday to you have fun
Explanation:
Hydrogen is the lightest element on the periodic table of elements. Hydrogen gas is always bonded to itself or something else to fill its outer shell. That is why hydrogen gas is represented as H2. Hydrogen<span> is odorless, colorless, and tasteless; therefore, it is undetectable by human senses.</span>
A) earthquakes cause seismic waves.