In the figure below A-D represent the temperature and precipitation received in various biomes. Match the name of the most probable biome represented by the data with the letter next to the data.
The black footed ferret (pictured below) is endangered. One…
The black footed ferret (pictured below) is endangered. One of its major food sources, the prairie dog, has recently seen a decline due to a disease called sylvatic plague. The U.S. Fish and Wildlife Service has begun efforts to do drone drops of plague vaccine pellets coated in peanut butter. These pellets would be eaten by prairie dogs. If the vaccination of the prairie dogs works and causes a recovery of the black-footed ferret population, it would be evidence that the black-footed ferret population was being regulated in a(n) _________________ manner.
Oxpeckers are birds that follow herds of oxen. These birds c…
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?
Environmental problems in which there is differential exposu…
Environmental problems in which there is differential exposure to risks from toxic wastes or air pollution based on ethnicity, race, or socioeconomic status are issues of
A development project involves the removal of the shrubs alo…
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?
All of the genetic variation in that exists among the organ…
All of the genetic variation in that exists among the organisms on earth today is the result of
Between 1907 and 1923, cattle grazing in the Kaibab National…
Between 1907 and 1923, cattle grazing in the Kaibab National forest in Arizona was greatly reduced, deer hunting was eliminated, and predators were killed. Over 600 cougars, 11 wolves (most had already been killed in the 1800s), and 3,000 coyotes were trapped or shot. In response, the deer herd began to increase. By 1915, the deer were estimated at 25,000; by 1920 at 50,000; and by 1923 at approximately 100,000.Which of these graphs shows the Kaibab deer population between 1900 and 1923?
Once the assessment is completed, check off each statement b…
Once the assessment is completed, check off each statement below to confirm you followed instructions:
Each Organization is influenced by these major factors:
Each Organization is influenced by these major factors:
Return of Investment measures the amount of return on an inv…
Return of Investment measures the amount of return on an investment relative to the investment’s cost.