Which of the following statements is true about prairie dogs? a. prairie dogs have a specific call to indicate the intelligence of the predator. b. prairie dogs vary their call depending on the characteristics of a predator. c. prairie dogs vary their call only when their community is out of danger. d. prairie dogs have one basic call that indicates the presence of predators.

Ascientist has predicted that the population of earth will continue to grow exponentially until the year 2300. at that point, we will reach carrying capacity of earth’s resources, and population growth will plateau. if the scientist’s prediction is correct, what can you predict about human energy use at that time? justify your answer by explaining the relationship between population growth and energy use. (5 points)

Physical needs include: a. the need for sleep b. the need to feel safe c. the need to feel secure d. all of the above

Gneiss is formed. the mineral grains in which granite are flattened under pressure