Exam 4

Question 1

what are the five major types of estuaries

Answer 1

1) coastal plain
2) bar built
3) fjord
4) tectonic
5) river deltas

Question 2

how are coastal plain estuaries formed

Answer 2

melting of ice, sea level rose and drowned river valleys

Question 3

how are bar built estuaries formed

Answer 3

accumulation of sediments along the coast, parallel to the coastline

Question 4

how are fjords formed

Answer 4

valleys cut by retreated glaciers, sea level rose, current river input

Question 5

how are river delta estuaries formed

Answer 5

broad, poorly defined fan shaped mouth of rivers, subsided/sank land

Question 6

what are the major similarities and differences between types of estuaries

Question 7

what organisms live in estuaries

Question 8

what are the basic structures of food webs in salt marshes, mud flats, and mangrove forests

Question 9

define seawater wedge and give an example

Question 10

define osmoconformer and give an example

Question 11

define osmoregulator and give an example

Question 12

what is the vertical zonation of march plants and mangroves, and what are the driving forces?

Question 13

what’s the human impact of estuarine communities? how can we protect estuaries?

Question 14

how are zones defined in marine environments

Question 15

how are the boundaries defined in marine environments