How did Johan Rund first hear about bloodless fish living in the Southern Ocean in 1929?

What molecule found in the sera of notothenioids is a polypeptide composed of repeats of three amino acids: threonine, alanine, and alanine–with a disaccharide attached to the threonine?  

Bruce Sidell (University of Maine) and his colleagues examined the myoglobin gene in icefish with pale hearts. Which of the following is correct about their findings? Mark all that apply.

Who discovered that the sera of several notothenioids froze at temperatures (-2.0 – 2.1 C) well below the freezing point of temperate fish (0.8 C)?  

Johan Rund was able to examine fresh icefish himself for the first time in 1953. He drew a blood sample from the fish and made a blood smear. How many erythrocytes did he count?

True or False. The laboratory exercise 24 had several survey organisms from the Domain Archebacteria/Archae.

Which of the following mechanisms are responsible for maintaining the acid-base balance by the kidney? Select all that apply

Which analyte is most commonly used for clearance tests?

Which of the following are requirements for a good glomerular filtration test? Select all that apply

What part of the nephron is labeled #5?