What is the law of the minimum?

The nutrient in least supply is the one that limits growth

How does a lake become a forest over time?

Sediment goes the bottom filling it up with decaying matter

What is carrying capacity?

Species in a habitat with its max pop size that can sustain

Soil on the top layer that is rich in organic matter

Exotic species disturb an ecosystem because they

often have no natural predators or other control mechanisms

swampy coniferous forest of high northern latitudes

Swamp or bog with a mix of water and partly dead vegetation

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Biology 20 Unit B Quiz Quiz

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Questions 25

Answers

1
What is the law of the minimum?
The nutrient in most supply is the one that increases growth
The nutrient in most supply is the one that limits growth
The nutrient in least supply is the one that boosts growth
The nutrient in least supply is the one that limits growth
2
The zone of a lake or pond below the open-water zone, where no light reaches.
Deep Water Zone
Littoral Zone
Open Water Zone
Ozone
3
A large region characterized by a type of climate and types of plant and animal communities
Biome
Community
Ecosystem
Biodiversity
4
Removal of nutrients from soil is caused by
erosion
evaporation
the water table
leaching
5
How does a lake become a forest over time?
Humans build them
Sediment goes the bottom filling it up with decaying matter
They cannot it is impossible
All the water evaporates
6
What is carrying capacity?
Species in a habitat with its max pop size that can sustain
a community in its min pop size that can sustain its habitat
Species in a habitat with its min pop size that can sustain
a community in its max pop size that can sustain its habitat
7
What type of tree would you find in a coniferous forest?
Spruce trees
Popular trees
8
What is Humus?
Anything on the soil to retain moisture and prevent weeds.
Soil on the top layer that is rich in organic matter
A delicious dip for my corn chips and veggies!
solid rock underlying loose deposits of soil
9
Exotic species disturb an ecosystem because they
always cause extinction of the local populations
occupy a niche that has not been filled before
are better adapted to local habitats than the native species
often have no natural predators or other control mechanisms
10
A major abiotic factor in freshwater ecosystems is the _________________.
plants in the water
color of water
animals in the water
speed of water
11
What is the beginning of a river called?
end
beginning
mouth
source
12
What are two factors that characterize a biome?
Biotic and dead things
nothing makes a biome special
Open and Deep
Biotic and abiotic factors
13
Define Tiaga
A savanna grassland with few trees or shrubs
swampy coniferous forest of high northern latitudes
a barren area of landscape where little precipitation occurs
swamp or bog with a mix of water and partly dead vegetation
14
Everything an organism does to survive and reproduce in its ecosystem determines its
niche
trophic level
competitive advantage
reproductive success
15
An ecotone is considered to be more stable because it has
less biodiversity
more biodiversity
smaller populations
larger populations
16
Which major Canadian biome(s) is/(are) found in Alberta?
B and C only
tundra
grassland
taiga
17
What is Muskeg?
a savanna grassland ecosystem with few trees or shrubs
Swamp or bog with a mix of water and partly dead vegetation
swampy coniferous forest of high northern latitudes
a barren area of landscape where little precipitation occurs
18
Complete the following analogy: a habitat is to an address as a niche is to...
A house
A food source
A biome
A occupation
19
Farms grow crops where native species are; what ecological interaction does a farm demonstrate?
interspecific competition
predator/prey
resource partitioning
intraspecific competition
20
Water is most dense at?
1 degrees
0 degrees
3 degrees
4 degrees
21
A __ is a group of organisms that are closely related and can mate to produce fertile offspring
Community
Ecosystem
All of the above
Species
22
The Canadian terrestrial ecosystem having the greatest biodiversity is the
tundra
taiga
temperate deciduous forest
grassland
23
What are the 3 zones of a lake?
open, littoral, deep
open, closed, deep
open, littoral, closed
open, littoral, shallow
24
What type of tree would make up a deciduous forest?
Popular trees
Spruce Trees
25
Soil is formed by
decomposition of plant and animal material
abiotic factors breaking down rocks
biotic factors breaking down rocks
all of the above

Biology 20 Unit B Quiz Quiz Flashcards | StudBud