well fungi gets alot of its energy from dead things so it would have to be b algae since c and d are just microscopic organisms
I believe that the most common antibody switch is from IgM to IgG.
Class switching occurs by a mechanism called the class switch recombination binding. It is a biological mechanism that allows the class of antibody produced by an activated B cell to change during a process known as isotype or class switching. The mechanism changes a B cell's production of antibodies from one form to another, such as from the isotype IgM to the isotype IgG.
Earth would basically look like the Moon; minus the craters, of course. This is because with no atmosphere to hold all of the Oxygen near the surface, all life would die off fairly quickly.
<span>They often use the fossil recordnova net. I hope this helps.</span>
Answer:
<em><u> One-fourth of an inch long</u></em>
Explanation:
I hope that helps!!! :)
