Scientific Consensus is often interpreted as “most scientists agree” however this is misleading because science should be based on  ___ not ____.

A population is defined as 

The sequence of developmental milestones proceeds as follows:

Natural selection should favor the highest proportion of juxtamedullary nephrons in which of the following species?

The advantage of excreting wastes as urea rather than as ammonia is that

The epithelium best adapted for a body surface subject to abrasion is

More than one answer may be correct.  Please check all correct answers. To increase the effectiveness of exchange surfaces in the lungs and in the intestines, evolutionary pressures have

The following questions refer to the digestive system structures in Figure 41.1. Figure 41.1 Where does the digestion of fats mostly occur?

In 2012 a British teenager celebrated her birthday by drinking a cocktail made with liquid nitrogen and alcohol.  The liquid nitrogen froze her stomach, and her stomach had to be removed surgically.  Given what you know about the function of the digestive tract, what potential implications might removing a person’s stomach have for that person’s ability to digest food?  What might that person now have to consider doing to ensure proper nutrition?   Explain your reasoning.

A freshwater fish was accidentally placed in salt water. After several minutes in this saline water, it died. What is the most logical explanation for its death?