Chapter 39
Self-Quiz
Unit 6: Interaction with the Environment
The Biosphere
Review
The biosphere, composed of seven
biomes and eight
biomes, refers to all of the organisms and their environments on Earth. Human activity is rapidly changing the
biosphere.
Climate is the prevailing
conditions in an area over relatively long periods of time. A major influence on climate is
radiation.
The
of the earth gives rise to
seasons
as it
around the
Sun.
Climate is largely influenced
by
. The temperate regions of the world are bounded by the Tropics of
and
and the
and
Circles.
The
of the earth causes day and night. Animals that are active during the
day
are
, those that are active
at night
are
, while those active at
twilight
are
. The rotation also causes the Coriolis Effect and deflect
prevailing
winds: the
blow in the
tropical
regions, while
blow in the
temperate
regions.
Prevailing
winds cast a
rain
when they are blocked by a
mountain
range.
Large bodies of
water
have a
effect on the climate of surrounding lands.
Terrestrial
biomes
are classified mainly by the dominant
of the region, which in turn is largely determined by
. The 7 major
terrestrial
biomes
are:
,
,
,
,
,
, and
.
Tropical
forests are the most
of the biomes.
Aquatic
biomes are classified by their physical characteristics, such as
,
, and water
and
. The 8 major
aquatic
biomes are
,
,
,
,
,
,
, and
.
Coral reefs
are the most
of the biomes, while the
is least productive among the aquatic biomes. How many aquatic biomes can be found near our
area?
Human impact on the biosphere include
loss and deterioration,
, and
. We may also be affecting
itself.
Chapter 40
Self-Quiz
Unit 6: Interaction with the Environment
Why Organisms Live Where They Do
Review
The branch of science that examines how organisms interact with their environment, and why organisms live where they do, is
.
The areas over which a species can be found naturally is called their
, or
. This may not include all the suitable
for that species.
Historical
factors,
such
as
drift, can affect species distribution. An example is the distribution of fossil
of the
across 3
continents,
including
, due to
drift, a process still ongoing today.
Humans can affect species
dispersal
by introducing
alien
species such as the
which can displace native organisms.
The
(abiotic)
environment of a habitat includes factors such
,
,
, and
.
The
factors includes prey and
species,
as well as
. The abiotic and biotic environments interact to form the
.
Disturbances
such as
,
,
, and
can damage some organisms while providing
opportunities
for other organisms.
Other factors affecting species distribution
include
climate
change,
, and
loss
and
deterioration.
Why is it important to know the diversity of organisms living in our
rivers?
Why should we care about the welfare of the
Spotted
?
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Feb 28, 2006
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Chapter 39
Self-Quiz