Modern cheetahs are very genetically similar to one another, so much that their immune system does not recognize the cells of another cheetah as foreign. Based on this information we might suppose

Select which statements are true about the Endangered Species Act?  Exceptions to the act can be made by a congressional committee [ans1] The act was signed into law and only supported by politically liberal politicians [ans2] The act only applies to flagship or other species that have public appeal [ans3]  

You are discussing with a friend about how to make environmental decisions and your friend says they want to know what the most environmentally friendly way to eat an apple is. You reply (choose the most accurate response)

Oxpeckers are birds that follow herds of oxen. These birds can be observed picking and eating things off the oxen. To explore the nature of this species-species interaction, a researcher divided a herd of oxen into two groups, control and experimental. He rotated the two groups between pastures. In the experimental group an individual scared the birds away from the oxen, in the control group an individual accompanied the oxen, but did not scare the birds away from their usual feeding activities. After a month the oxen were evaluated for numbers of ticks and number of open wounds (injuries). This experiment was repeated 3 times (shown as treatments below). There was no significant difference between the numbers of ticks in the experimental and control groups. Below is the data for the wounds. What do these data suggest about the interaction between the oxpeckers and the oxen? 

The graph below shows how populations grow

From the Tasmanian devil example we talked about in class (where in some areas as much as 95% of the devil population has been lost), if all the infected individuals were removed from the population and the spread of the disease were stopped. What would you expect to happen to the devil population?

A development project involves the removal of the shrubs along a hillside that stabilize the hillside against erosion. At some point the hillside undergoes severe erosion and triggers a landslide. No people are harmed in the landside, but the topography (the way the land is shaped), and the habitat that the land provides is dramatically altered. Which environmental ethic would find this type of activity problematic?

Which of the following are characteristics of K-selected species?

You are listening to a podcast in which a politician is arguing about how they cannot rely on science when creating policy, because science seems to keep changing its mind about topics. You say out loud in response (forgetting that you are wearing earbuds getting some strange looks from the others on the campus bus): (pick the most accurate statement about science) 

Think back to your reading of the article “The Human Population Grows Up”. What is happening to the rate of human population growth?