15. Which of the following is NOT one of the ways that a lake can form?
a. A stream cuts off a meander to leave an isolated channel of water.
b. Ocean waters recede to lower-lying areas.
C. Cirques high in the mountains fill with water.
d. Eutrophication causes a bog to become flooded.

Listed in the item bank are some key terms and expressions associated with the categories seen in the venn diagram. to find out more information about items, some have more details available when you click on them. drag and drop each item onto the proper area of the diagram. if an item describes more than one category, be sure to place it in the overlapping space. viruses are tiny infectious pathogens that cause many different diseases, such as polio, and the flu. though they are similar to one celled organisms in some ways, in many ways they are very different. use the venn diagram below to show the similarities and differences between viruses and living organisms.