Using evidence from the Sea Star Wasting Disease case study, explain how change in allele frequency over time (evolution) happens due to: (Pick one or two of the following to explain) 1) Species increasing in number
2) Mutation and reproduction results in a variety of genes passed on and carries by individuals of a population
3) Organisms in a community compete for resources
4) Organisms who can survive, thrive, and reproduce will increase in number

How are extrusive rocks formed? magma gets trapped inside earth and cools to rock. volcanoes apply force to solid rocks and eject them. magma gets forced to earth’s surface and cools to rock. volcanoes trap lava inside earth, where it cools to rock.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. label the following topographic map. click on a label below the map to select it, and then click on the appropriate box on the map to place the label. (increments for contour lines is 50 ft).

Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae