Answer to Question 1
ANSWER: Beachfront sand dunes absorb the energy of waves and advancing storm surges and can reduce damages to coastal communities. Cypress forests or thickets of mangroves limit the shoreward advance of waves and dramatically slow a surge's landward advance. Unfortunately, many of these areas have been modified or damaged over the years through development. Some communities have now recognized the importance of these areas and are working to protect or restore them. Human alterations of dunes and mangrove stands that would increase potential flood damage are prohibited. Even walking on dunes is generally prohibited because it disturbs the sand and any vegetation covering it, thereby making the dune more susceptible to erosion by both wind and waves. To protect the dunes, people build elevated walkways over dunes to beaches.
Answer to Question 2
ANSWER: Anchor anything that can become a projectile in high winds; board up windows and doors with plywood; store a supply of drinking water, medication, and food; move boats to a safe place; fill your gas tank; turn off appliances; turn refrigerator to its coldest setting; close the garage, and turn off gas lines.
Examples of modified aboveground roots.
Examples of characteristics measured by palpation
U.S. suburbs were once unplanned, rambling affairs that took irregular shapes as people moved away ...
Natural selection acts on genetic variation
The impact of climate change on natural ecosystems
Examples of mimicry.