The first terrestrial animals were the ___________.

The causative agent of Chagas disease is __________ ___________.

The evolution of aerobic life forms was made possible as cyanobacteria released _________ into the atmosphere.

The ability to grow to great heights allowed plants to compete for __________.

A characteristic see ONLY in mammals is

Two units of packed RBCs were returned from the operating room in a cooler with an ice slurry present, and the internal temperature of the cooler was 11° C. How will the blood bank handle these returned units?

Which of the following is an invertebrate chordate?

Which of the following is NOT shared by mollusks and annelids?

Pseudopodia are used by amoebas for ingesting food as well as _________.

All of the following are characteristics of mollusks EXCEPT: