Biology
3. Which of the following electromagnetic waves has the least energy on theelectromagnetic spectrum?a. Infraredb. X-RaysC. Gammad. Radio
Which of the following statements about mountains is false?A mountain range near the equator could have snow-capped mountains.The climate is often very different on one side of a mountain than it is on the other side.Mountains block prevailing winds and change the amount of moisture that wind carries.none of the above
All starsreflect light from the sun.b. appear to wander off their star paths.a.c. produce their own light.d. All of the above.
The scatterplots indicate the population of rabbits in the population over time. The y-axis represents the number of rabbits and the x-axis is time. Which graph most likely represents a rabbit population that found a new, larger habitat, but then eventually experienced an increase in predation? Graph AGraph BGraph CGraph D
Earths surface is broken into large pieces that are slowly shifting. This gradual process, known as plate tectonics, accounts for movement of entire continents over time. During the past century, geologists have found multiple lines of evidence that support the theory of plate tectonics, including the mechanism that drives the plates motionsea floor spreading. As a result, sections of Earths crust are constantly being pulled apart or pushed together. This movement creates many of Earths landforms, such as mountains, rift valleys, and volcanoes.According to the theory of plate tectonics, 250 million years ago all of Earths landmasses were clustered into one supercontinent, known as Pangea. Based on the past and current movements of Earths plates, predict how the location of the continents might shift during the next 250 million years. Do you think theyll spread out, cluster together, or move in a combination of the two? What types of landforms do you anticipate forming as a result? What effect, if any, do you anticipate this movement will have on life on Earth?
A biologist began studying a population of bullfrogs. In 1998, she found thatmost of the male frogs croaked, but some did not. A bat species known toprey on male frogs migrated to the area in 2005. The biologist returned to thearea in 2008 and repeated population counts of male frogs. The table showsher data1998200220042008Number ofnoncroaking males2443682081086Number of croakingmales7421165791305What factor most likely caused the noncroaking male population to increaseafter 20042A. Selective pressure in the form of a new predatorB. Learning to avoid the new predatorc. Extinction of the croakers because of the new predatorD. Adaptation of the croakers in the presence of a new predato
What do scientists believe contributed to the appearance of multicellular organisms?
How can you help others practice positive healthy choices?exercise with themshare reliable health resources with themparticipate with your friends in healthy community eventsOall of the above
