Hello! the answer is B.Gametangium
<span>unicellular organisms use locomotion and movement to catch their pray .</span>
Binomial nomenclature<span> is the </span>system<span> which was proposed by Carl </span>Linnaeus<span> in the early 1700s. He is considered to be the "Father or Taxonomy." The </span>system<span> that he devised for classifying, </span>naming<span> and ranking </span>organisms<span> is currently still being put to use.</span>
its called an (answer -> "Ionic" <-) bond.