Large quantity of agnostid fossils were discovered in areas around the world. However, limited information provided by these fossil fail to determine how these agnostid lived 450 million years ago. Three theories are proposed but are all disputed by the professor.
First, the reading passage claims that the primitive arthropod acted like free-swimming predators. To exemplify this point, the reading passage points out the fact that many other types of primitive arthropods displayed a characteristic of proficiency in swimming and active predators. However, the professor challenges this statement by elucidating that all of the similar arthropods had large and well developed eyes, which enabled them to tract the prey effectively. If agnostids were
First, the reading passage claims that the primitive arthropod acted like free-swimming predators. To exemplify this point, the reading passage points out the fact that many other types of primitive arthropods displayed a characteristic of proficiency in swimming and active predators. However, the professor challenges this statement by elucidating that all of the similar arthropods had large and well developed eyes, which enabled them to tract the prey effectively. If agnostids were