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Biology Fall Semester Test🍂 Flashcards | StudBud
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Biology Fall Semester Test🍂
Biology Fall Semester Test🍂
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1
Which is one way of freshwater wetland differs from a lake or pond?
Water flows in a lake or pond but never flows in a wetland
wetlands are nesting areas for birds, but lakes and ponds are not
wetlands are salty, but lakes and ponds are fresh
water does not always cover a wetland as it does a lake or pond
2
Nitrogen fixation is carried out primarily by
Bacteria
consumers
humans
plants
3
Which concept does the picture illustrate?
desertification
the decrease of tree heights over time
deforestation
the increase of young trees over time
4
Which of the following descriptions about the organization of an ecosystem is correct?
Populations make up species, which make up communities
Communities make up species, which make up populations.
Species make up populations, which make up communities
species make up communities, which make up populations
5
Focusing onWhich 2 centralThemes in biology would help a student understand why animal come in different shapes and size
Cellular basis for life; homeostasis
science as way of knowing; interdependence of nature
matter and energy; homeostasis
structure and function; unity and diversity of life
6
Introduced species can threaten biodiversity because they can
cause biological magnification
reduce the amount of fertile land
cause desertification
crowd out native species
7
When the exponential phase of a logistic growth curve of a population ceases,
the size of the population stays the same
population growth begins to speed up
population growth begins to slow down
The size of the population drops
8
A tropical rainforest may be unable to be returned to its original climax commu after which of the following disturbance
burning of a forest fire
flooding after hurricane
clearing and farming
volcanic eruption
9
Plants are
Omnivores
herbivores
carnivores
primary producers
10
Which of the following is a food chain in the food web shown
grass, caterpillar, robin, hawk
Grass, grasshopper, snake, hawk
tree, rabbit, hawk, snake
tree, deer, mountain lion, fox
11
suppose that species of toads is introduced in a new environment. The toad population would most likely
remain the same
increase exponentially
decrease rapidly and die out
increase logistically
12
The total amount of living tissue within a given tropic level
biomass
organic mass
trophic mass
energy mass
13
The greenhouse effect is
an unnatural phenomenon that causes heat energy to be radiated back into at
a natural phenomenon that maintains Earth's temperature range.
the result of the differences in the angle of the sun's rays
something that has only occurred for the last 50 years
14
After a natural disaster such as a hurricane or a drought, a population
will experience exponential growth
can be most killed of
will reach its carrying capacity
can thrive and increase
15
An interaction in which an animal feeds on plants is called
herbivore
carnivory
symbiosis
predation
16
Which is one way a freshwater wetland differs from a lake or pond?
Wetlands are nestling areas for birds, but lakes and ponds are not.
Lakes and wetlands are salty, but ponds are fresh
Water flows in a lake or pond but
Water does not always cover a wetland as it does a lake or pond
17
The anticipated human population by the year 20150 is about
78 billion
78 billion
9 billion
7.8 billion
18
What is at the base of all ecological pyramids?
herbivores
consumers
decomposers
producers
19
A well-tested explanation that explains a lot of observations is
a hypothesis
a controlled experiment
an inference
A theory
20
a wetland that contains a mixture of fresh water and salt water is called
an estuary
a pond
a river
a stream
21
Which biome is characterized by very low temperatures, little precipitation, and permafrost?
temperature forest
Tundra
tropical dry forest
desert
22
The nutrient availability of aquatic ecosystems is the
Amount of different animal species living in the water
amount of nitrogen, oxygen and other elements dissolved in the water
amount of rainfall the water receives
number of other organisms present in the water
23
How is parasitism different from commensalism?
one organism benefits in parasitism and no organism benefit in commensalism
one organism is harmed in parasitism and no organisms are harmed in commens
both organism benefit in parasitism and both organisms are harmed in commen
one organism is harmed in parasitism and both organism are harmed in commen
24
What would happen if the population of the bird species shown in the ecosystem were to suddenly decrease?
The fish population would increase
the fish would occupy the bird's niche.
The grass and fish would become buddies
The grass and fish would compete for resources
25
A model of the complex feeding interactions among in a community from producers to decomposers is called a
ecosystem
population
food chain
food web
26
in a logistic growth curve, exponential growth is the phase in which the population...
growth stops
growth begins to slow
growth stops
grows quickly
27
Plants are...
primary consumers
omnivores
primary producers
herbivores
28
During a long time of no rainfall, a mountain lion may drink from a farm pond. This behavior is due to
the change in an abiotic factor in its environment
The change in a biotic factor in its environment
its need to find a new habitat
its need to find different food to eat
29
The standard system of measurement uses yards....The metric system uses liters. Why is the metric system easier to use?
The metric system is based on multiples of 10
The metric system is used by everyone in the world
Metric units are easier to measure than English units.
Metric units are smaller than English units.
30
Which is an example of how biotic and abiotic factors interact?
Sunlight increases temperature of pond water
Humidity in the air forms fog in a valley
Water and soil mix together to make mud
Tree roots split apart rocks in the ground.
31
Science differs from other disciplines, such as history and the arts, because science relies on
facts
theories
testing explanations
observations
32
Which of the following could descibe a population that is decreasing in size?
deathrate and birthrate are =
death rate is lower then birth rate.
birthrate is increasing rapidly
The death rate is becoming higher than the birthrate
33
Which of the following is true about nonrenewable resources
They are plenty for people to use for a very long time
They can be replaced through sustainable development
They cannot be replaced after they are used up
Using them up will help keep the environment healthy
34
The number of different species in the biosphere or in a particular area is called
Ecosystem diversity
biodiversity
species diversity
genetic diversity
35
The number of different species in the biosphere or in a particular area is called
genetic diversity
biodiversity
species diversity
ecosystem diversity
36
The data in the graph below helped ecologists identify which environment problem?
desertification
habitat fragmentation
the hole in the ozone layer
global warming
37
A bird stalks, kills, and then eats an insect. Based on its behavior, which pair of ecological terms describes the bird?
producer, heterotroph
carnivore, consumer
autotroph, herbivore
Herbivore, decomposer
38
What is the most likely cause of the decrease in moose pop. immediately after 1995?
a decrease in predators caused competition in the moose population
Poisonous plants killed off many moose
Overcrowding caused competition in the moose population
Many moose reached old age and died
39
Each of the following is an abiotic factor in the enviroment EXCEPT
plant life
snow
temperature
soil type
40
Scientist often try to repeat each other's results. Which should a scientist do to make it easier for other to replicate
Collect only one set of data
Use the metric system when communicating procedures and results
Not use a control to save time
Skip peer-review so the results are available sooner.
41
Because of biogeochemical cycling
many nutrients do not reach toxic concentrations in the biosphere
human activity has no effect on elements, chemical compounds, and other mat
nutrients are circulated throughout the biosphere
Living organisms are not limited by any one nutrient
42
What is the term for each step in the transfer of energy and matter within a food web?
food pyramid
trophic level
food chain
energy path
43
The photic zone
Is deep, cold, and permanently dark
Is where chemosynthetic bacteria are the producers
extends to the bottom of the open ocean
extends to a depth of about 200 meters
44
What is one negative consequence of the Industrial Revolution?
fewer jobs
people workings longer hours at their jobs
enviromental harm from the burning of fossil fuels
more expensive clothes
45
What goes in Box 5 of the food web
carnivores
decomposers
herbivores
scavengers
46
A scientists choose newspaper or in peer-reviewed journal for a report, What is benefit of publishing in the journal?
The quality of the report will meet high scientific standards.
The report will be published more quickly in the journal
Other scientists will know that everything in the report is true
The reviewers will fix mistakes in the report's experiment
47
Animals get most of the nitrgogen they need...
directly from bacteria in the soil
from the process of denitrification
By consuming plants or other animals
by breathing
48
The algae at the beginning of the food chain are
primary consumers
heterotrophs
primary producers
decomposers
49
Which of the following is a biological aspect of an organism's niche?
amount of sunlight
composition of soil
the way it gets food
the water in the area
50
The north pole and south pole are
not classified into major biomes
part of aquatic ecosystems
classified as tundra biomes
not home to any animals
51
imported plants and animals in Hawaii have
Increased the native bird species
increased crop yields
caused native species to die out
improved soil fertility
52
About 500 years ago, the world's population started
to level off
decreasing
to reach carrying capacity
growing more rapidly
53
Ideally sustainable development should...
provide for only human needs
preserve ecosystems while providing for human needs
Use more natural resources to make goods to meet human needs
put the protection of the ennviroment above human needs
54
What does a reviewer do during peer-review?
change data to support details
Focus on mistakes in spelling
check for mistakes and bias
Repeat the experiments in the article
55
In Rwanda, there more young people than old people. This age structure indicates a population that.
Has a steady growth rate
will double in 30 years
will decrease in 30 years
has stopped growing
56
Using a universal system of measurement is MOST important during which part of scientific methodology
asking question
collecting data
drawing conclusions
forming a hypothesis
