Download Chapter 1 Review pg. 52 #1-15 Answers Chapter 1 Review pg. 52

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Chapter 1 Review pg. 52 #1-15 Answers
The relationship between the biosphere, a biome, and
an ecosystem is that ecosystems make up biomes and
biomes make up the biosphere.
(a) Three factors that influence the characteristics of
biomes are temperature, precipitation, and elevation.
Students may also list latitude, ocean currents, and soil.
(b) Warmer temperatures and more rainfall exist closer
to the equator. Temperature drops with increasing
elevation. There is more precipitation on the windward
side of mountains. Accept all reasonable answers.
The two factors that are the most important
for determining a region’s climate are temperature
and precipitation.
A climatograph is a graph of climate data for a specific
region based on data for many years and includes
precipitation and temperature data.
Adaptations are characteristics that enable organisms
to better survive and reproduce.
The difference between a structural adaptation and a
behavioural adaptation is that a structural adaptation is
a physical feature of the organism that contributes to
the survival of the organism. For example, the Arctic fox
has thick fur. A behavioural adaptation is what the
organism does to survive unique conditions. For
example, bears hibernate in winter to withstand the
cold.
Temperate rainforest biomes are usually found
along the coasts of continents because mountain
ranges are often found near coastlines and the ocean
winds drop moisture on the windward sides of
mountains.
There are few trees in the grassland biome because fire
and grazing kill seedlings and rainfall is limited.
Temperature decreases with elevation, and precipitation
is higher on the windward side of the mountain. The
leeward side receives much less precipitation.
At the top of a mountain, you may find a polar ice,
tundra, or boreal forest biome depending on the
elevation.
Three abiotic components of an ecosystem are light
availability, water availability, and nutrient availability.
Light and water are required for photosynthesis. Water
is required for chemical reactions to occur in plants and
animals and to transport nutrients. Nutrients are
required for plant growth.
Ecological hierarchy is the order of biotic interactions
from organism to population to community to
ecosystem.
In mutualism, both organisms benefit from the
interaction. In commensalism, one organism benefits
while the other organism does not benefit nor is it
harmed.
In parasitism, one species benefits and the other is
harmed but usually not killed. In predation, one
organism benefits and the other organism is often killed
as the predator eats all or part of the organism.
Prey animals have adaptations such as spines, hard
shells, and camouflage or look like other
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Chapter 1 Review pg. 52 #1-15 Answers
The relationship between the biosphere, a biome, and
an ecosystem is that ecosystems make up biomes and
biomes make up the biosphere.
(a) Three factors that influence the characteristics of
biomes are temperature, precipitation, and elevation.
Students may also list latitude, ocean currents, and soil.
(b) Warmer temperatures and more rainfall exist closer
to the equator. Temperature drops with increasing
elevation. There is more precipitation on the windward
side of mountains. Accept all reasonable answers.
The two factors that are the most important
for determining a region’s climate are temperature
and precipitation.
A climatograph is a graph of climate data for a specific
region based on data for many years and includes
precipitation and temperature data.
Adaptations are characteristics that enable organisms
to better survive and reproduce.
The difference between a structural adaptation and a
behavioural adaptation is that a structural adaptation is
a physical feature of the organism that contributes to
the survival of the organism. For example, the Arctic fox
has thick fur. A behavioural adaptation is what the
organism does to survive unique conditions. For
example, bears hibernate in winter to withstand the
cold.
Temperate rainforest biomes are usually found
along the coasts of continents because mountain
ranges are often found near coastlines and the ocean
winds drop moisture on the windward sides of
mountains.
There are few trees in the grassland biome because fire
and grazing kill seedlings and rainfall is limited.
Temperature decreases with elevation, and precipitation
is higher on the windward side of the mountain. The
leeward side receives much less precipitation.
At the top of a mountain, you may find a polar ice,
tundra, or boreal forest biome depending on the
elevation.
Three abiotic components of an ecosystem are light
availability, water availability, and nutrient availability.
Light and water are required for photosynthesis. Water
is required for chemical reactions to occur in plants and
animals and to transport nutrients. Nutrients are
required for plant growth.
Ecological hierarchy is the order of biotic interactions
from organism to population to community to
ecosystem.
In mutualism, both organisms benefit from the
interaction. In commensalism, one organism benefits
while the other organism does not benefit nor is it
harmed.
In parasitism, one species benefits and the other is
harmed but usually not killed. In predation, one
organism benefits and the other organism is often killed
as the predator eats all or part of the organism.
Prey animals have adaptations such as spines, hard
shells, and camouflage or look like other
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Pg. 51 #1-9 Answers
Checking Concepts
1. The terms from smallest to largest are single
species, population, community, ecosystem,
biome, and biosphere.
2. A habitat is where the organism lives and a
niche is what role the organism plays in the
environment.
3. A – biome; B – ecosystem; C – habitat
4. Ecosystems provide water, light, nutrients,
oxygen, and soil.
5. Soil is important for terrestrial ecosystems
because it provides nutrients, supports many
species of small organisms, and anchors plants.
6. Some organisms in an ecosystem are in competition
for food or habitat when they occupy
the same area at the same time.
7. (a) Sample answers: An example of plant adaptation
for mutualism is the snapdragon
colours to attract bees. An example of an
animal adaptation for mutualism is that
bees transport pollen on their hairs when
obtaining nectar.
(b) Sample answers: An example of a plant
adaptation in predation is spines on a cactus.
An example of an animal adaptation in
predation is highly developed senses, such
as good eyesight and an acute sense of
smell.
8. (a) Mutualism
(b) Commensalism
(c) Parasitism
(d) Competition
(e) Mutualism
9. Sample answer: Ecosystems are important to
the survival of humans because they provide
food, water, nutrients, timber, and medicine;
purify water; and prevent flooding.