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Bio I Final Exam Review Chp 3-6 Flashcards | StudBud
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Bio I Final Exam Review Chp 3-6
Bio I Final Exam Review Chp 3-6
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Questions
31
Answers
1
Abiotic factors are
living
.
True
False: nonliving
2
About 500 years ago, the world's population started
to reach carrying capacity.
True
False: growing more rapidly
3
If a lake receives a large input of a limiting nutrient, which would happen first?
the concentration of oxygen drops below the necessary level
nitrogen compounds are recycled
algae begin to die and decomposers take over
an algal bloom occurs
4
What is one negative consequence from the Industrial Revolution?
releasing green house gas methane into the atmosphere
environmental harm from burning fossil fuels
fewer jobs
more expensive clothes
5
A model of feeding interaction among organisms in a community from producers to decomposers is
population
food web
food chain
ecosystem
6
The 2 biomes with the least amount of precipitation are
the
tundra and tropical dry forest.
True
False: tundra and desert
7
A disease resulting in the deaths of one third of a dense population of bats in a cave
would be a result of exponential growth
would be a density-dependent limiting factor
would be a nutrient limiting facor
would be a density independent limiting factor
8
Introduced species can threaten biodiversity because they can
cause biological magnification
crowd out native species
cause deforestation
reduce the amount of fertile land
9
Age structure
refers to the number of individuals per unit area
True
False: population density
10
Energy flows in
one
direction, and nutrients recycle.
True
False: mulitple
11
Nutrient availability of aquatic ecosystems is the amount of
O
2
&other elements dissolved in H
2
O
False: other organisms present in the water
True
12
When calculating a population's ecological footprint, one has to take into account the
average height of the people in the population
resources need to clean up the population's waste
biodiversity of the population
location of the population
13
Corn planted in a field that was previously planted w/legumes then plowed under is likely to be
less productive because legumes took all CO2 & nitrogen
more productive because bacteria keep pests away
less productive because legumes remove phosphorus from soil
more productive because bacteria on legumes fix nitrogen
14
Which is a density-independent limiting factor?
a struggle for food, water and space
predator/ prey relationships
parasitism and disease
the eruption of a volcano
15
Something that controls the growth or size of a population is
the carrying capacity
a limiting factor
the growth rate
a growth factor
16
This organism lives where it's sometimes submerged and routinely exposed to air, heat ¤ts
whale
dolphin
squid
barnacle
17
How are Phases 1 and Phases 2 of logistic growth similar?
population is increasing&going towards its carrying capacity
a population is at its carrying capacity during both phases
the emigration rate is high than immigration rate in both
the death rate is higher than the birth rate in both phases
18
Biodiversity is valuable because it
gives us interesting things to look at
contributes to medicine and agriculture
provides humans with resistance to disease
tells us about many other species
19
Only 10% of energy can be passed on to the next trophic level. The remaining energy is
used in reporduction
stored as fat
stored as body tissue
eliminated as heat
20
Raising cattle and farming rice contribute to air pollution by
producing particulates into the air
producing smog which reacts to form a dangerous ozone gas
releasing sulfur compunds that form acid rain
releasing green house gas methane into the atmosphere
21
Which biome is characterized by very low temperatures, little precipitation and permafrost?
desert
tropical-dry forest
temperate forest
tundra
22
Which of the following descriptions about the organization of an ecosystem is correct?
communities make up species, which make up populations
species make up communities which make up populations
populations make up species which make up communities
species make up populations which make up communities
23
What can't the producers in some ecosystems make an unlimited supply of organic material?
temperatures are too hot for photosynthesis
energy needed to make organic material is lost as heat
one or more nutrients are in short supply
too many carnivores eat the producers
24
Protecting an entire ecosystem ensures that
existing parks and reserves will expand.
False: interactions among species will be preserved
True:
25
Which is one way a freshwater wetland differs from a pond or lake?
water doesn't always cover a wetland like a lake & pond do
wetlands are nesting area for birds but lakes&ponds are not
wetlands are salty but lakes and ponds are fresh
water flows in a lake or pond but never flows in a wetland
26
One of the greatest threats to biodiversity today is
altered habitats
old-growth forests
sustainable development
ozone depletion
27
If you know the
range of population
then you know the areas that're inhabited by the population
True
False: population density
28
Age structure is the number of
species
of each age a population contains
False: males and females
True
29
The grass at the beginning of the food chain in the image is
primary consumer
primary producer
heterotroph
decomposer
30
A
community
is an organism's physical & biological conditions in which the organism lives
True
False: niche
31
Which of the following is NOT one of the factors that play a role in population growth rate?
immigration
emigration
demography
death rate
