Author Question: What physical factors can the accumulation of coral and sediment change in the environment? a. ... (Read 109 times)

Pineappleeh · **on:** Aug 22, 2018

What physical factors can the accumulation of coral and sediment change in the environment?
a. Ocean temperature and current patterns
b. Availability of food
c. Salinity
d. Density

Question 2

What is a hardship for small organisms that are associated with living on a sandy beach?
a. Sand has sharp, jagged edges.
b. Capillary forces can pin organisms down within the sand.
c. Organisms have a hard time finding a firm footing when burrowing.
d. All of these choices

micaelaswann · **Reply #1 on:** Aug 22, 2018

Answer to Question 1

ANS: A
Communities can slowly modify the physical factors in their environment. Corals and sediments can
change the flow of currents which, in turn, changes other aspects of the environment. Information can
be found in the section Marine Communities Change as Time Passes.

Answer to Question 2

ANS: D
These factors are only a few of the hardships organisms must deal with on sandy beaches. This is in
addition to the normal problematic factors associated with the intertidal zone. Many of the organisms
must also find ways to distinguish food particles from grains of sand. There is also the issue of
predators being able to excavate them from the sand. Information can be found in the section Examples
of Marine Communities