Describe how tidal cycles will cause some organisms to sort themselves into subzones within the intertidal region. What will be an ideal response?
The rise and fall of the tides is the most important physical factor in intertidal communities.
Organisms living between the high- and low-tide marks experience very different conditions
from those residing below the low-tide line. Within the intertidal zone itself, organisms are
exposed to varying amounts of emergence and submergence. Because some organisms can
tolerate many hours of exposure while others can tolerate only a very few hours per week or
month, the animals and plants sort themselves into three or more horizontal bands, or
subzones, within the intertidal zone. Each distinct zone is an aggregation of animals and
plants best adapted to the conditions within that particular narrow habitat. The zones are
often strikingly different in appearance, even to a person unfamiliar with shoreline
characteristics.
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There are ________ stages in the Demographic Transition Theory
Fill in the blank(s) with correct word
What are two factors that control the species diversity of an island, according the theory of island biogeography?
The primary difference between the O and A horizons is that the O horizon usually has
A) more leaching than the A horizon. B) less leaching than the A horizon. C) more plant litter than the A horizon. D) less plant litter than the A horizon.
Which of the following is the term for the social movement dedicated to sustaining the earth's life-support system for all forms of life?
A. Ecology B. Environmental science C. Environmentalism D. Biodiversity management E. Sustainability