NEW
Font size
WorksheetsEvolution and QA review
Total questions: 45
Worksheet time: 33mins
What would most likely happen in a population that is approaching the carrying capacity of its environment?
Competition for available resources among individuals would increase.
The numbers of individuals dying in the population would decrease.
The numbers of individuals born in the population would increase.
There would be more food available to the surviving individuals.
The white-tailed deer population in some areas has grown too large because there are no natural predators. This loss of a natural predator for the deer, has led to what in the deer population?
The deer become overpopulated.
Deer no longer live that area.
all of these options
Underpopulation of deer.
Female cowbirds often lay their eggs in the nest of wrens, which unwittingly raise the young cowbirds as their own. Because the baby cowbird is bigger than the other birds it is fed first and gets to eat more than the other birds. The other birds in the nest may therefore starve. The relationship between the baby cowbirds and wren bird is an example of
commensalism
competition
parasitism
mutualism
Which of the following is NOT a form of symbiosis?
parasitism
mutualism
commensalism
successionism
What do environmental scientists currently attribute a major portion of global warming/climate change (the greenhouse effect) to?
the release of nitrogen from decaying garbage in landfills
the release of carbon from burning fossil fuels
the pollution of the atmosphere from nuclear power plants
the release of nitrogen from burning fossil fuels
Many biologists who study living systems of the world are concerned about the loss of biodiversity, due to extinctions related to human impact. What they are worried about is
an environmental catastrophe, such as a major meteor impact with the earth.
an increase of incidences of genetic mutation in earth’s animals and plants.
a reduction of the variety of species of plants and animals on the earth.
a reduction of the total numbers of animals and plants on the earth.
Wildfires sometimes are caused by lightning, when this happens in nature, many organisms
undergo mutualism
become overpopulated
remain in the area.
are left without their habitats.
Clownfish live within the protective tentacles of the sea anemone. In return, the sea anemone receives cleaning. What kind of symbiosis does this represent?
competition
commensalism
parasitism
mutualism
Using the food web, determine a possible outcome if frogs were removed.
butterfly populations would increase, while lavender and corn populations would increase
Rat and wolf populations would increase, while python and grasshopper populations decrease
corn populations would decrease, grasshopper populations would increase, and python populations would decrease
Eagle populations would decrease, Thrush populations would decrease, and dragonfly populations would increase
What can you infer from the image?
the Human is more evolved than the Rabbit
They are all evolved from each other
Humans evolved from fish
The organisms have common ancestry
Changes in the amount of DDT runoff into local tributaries eventually worked it's way through the food web and caused Bald Eagle eggs to become soft and pliable. This could lead to...
The extinction of eagle species.
Increases in the number of individuals of some eagle species
Eagle nation fans to riot
The emergence of new eagle species over time
On his travels, Darwin noticed that a particular species of bird had adapted its beak shape to fill multiple niches. Why did this arise?
competition for limited resources
the potential for a species to increase in number
the heritable genetic variation of individuals in a species due to mutation and sexual reproduction
the proliferation of organisms that are better able to survive and reproduce in the environment
Peppered Moths are normally white with black speckles across the wings. This patterning makes it well camouflaged against lichen-covered trees. There is also a naturally occurring genetic mutation which causes some moths to have almost black wings. These black forms are not as well camouflaged and are more likely to be eaten by birds and other predators. However, during The Industrial Revolution, massive amounts of coal were burned resulting in soot accumulation on local trees. What happened to the moths in response to this environmental shift?
mutated peppered moths were able to survive better and spread throughout the population
The mutated peppered moths were predated at a higher rate
normal peppered moths were predated on less often
normal peppered moths were predated on more often until they mutated their coloration trait and spread throughout the population
We are currently undergoing a mass extinction over 1000 times higher than "normal" extinction levels. What is thought to be the cause of this extinction event?
Earthquakes
Meteorite Strikes
Human Impact
Global Warming
Wildfires
Long ago, whales evolved from land mammals. Use the image to help identify which piece of evolutionary evidence best illustrates the ancestry
Analogous Structures
Evolutionary Embryology
DNA Evidence
Homologous Structures
Vestigial Structures
Which best describes the relationship seen in the following image?
homologous structures, uncommon ancestry
analogous structures, common ancestry
homologous Structures, common ancestry
vestigial structures, spontaneous speciaition
GermX kills 99.9% of germs. Why do .1% of germs survive?
.1% of germs survive because germs are able to reproduce very quickly
.1% of germs have a genetic mutation that allows them to survive the chemical onslaught
.1% survive because they are sexually selected for dthe proliferation of germs is so high that germX is unable to reach all of them
the proliferation of germs is so high that germX is unable to reach all of them
Male Peacocks are vibrantly colored and have unnecessarily long tail feathers for flying. In fact, the length of their tail feathers impedes their flight abilities and their vibrancy sticks out like succulent orange in the vast greenery (to potential predators anyway). Why, then, would the peacock have evolved to be so easily preyed upon?
Reproductive Isolation
Geographic Isolation
Live fast, die young
Sexual selection
The species of finches that Darwin observed differed in the shape of their beaks. According to Darwin, all of
these species probably
had migrated from Africa
ate the same diet.
had a common ancestor
had descended from similar birds in Africa
The process by which a population becomes better suited to its environment is known as
variation.
adaptation.
acclimation.
accommodation
According to Darwin, evolution occurs
because of natural selection
so rapidly that it can be observed easily.
during half-life periods of 5,715 years.
only through artificial selection
The major idea that Darwin presented in his book The Origin of Species was that
species change over time by natural selection.
species may change in small ways but cannot give rise to new species.
animals change, but plants remain the same over time
species change over time and never compete with each other
Natural selection is the process by which
the age of selected fossils is calculated
organisms with traits well suited to their environment survive and reproduce more successfully than organisms less suited to the same environment.
acquired traits are passed on from one generation to the next.
All of these
Natural selection could not occur without
gradual warming of the Earth.
competition for unlimited resources.
stable environments.
genetic variation in species
Since natural resources are limited, all organisms
have inherited characteristics.
display vestigial structures.
must migrate to new habitats.
must compete for resources.
Refer to the illustration. An analysis of DNA from these organisms would indicate that
they all have the same number of chromosomes.
they have identical DNA.
they all have the same number of bones.
their nucleotide sequences show many similarities.
Refer to the illustration above. The similarity of these structures is one form of evidence that the organisms
share a common ancestor
evolved instantaneously.
all grow at different rates.
live for a long time.
Refer to the illustration. The bones labeled “X” can be referred to as
sequential structures.
analogous structures
vestigial structures
homologous structures.
Which of the following is most likely a vestigial structure?
a fossil of a snail
flower color
the beak of a finch
the human tailbone
Homologous structures in organisms provide evidence that the organisms
have a skeletal structure.
share a common ancestor.
must have lived at different times.
are now extinct.
The beak of a bird and the beak of a giant squid evolved independently and serve the same function. The beaks are
divergent structures
homologous structures.
analogous structures
hybrid structures.
Evidence that evolution occurs includes all of the following except
similarities and differences in proteins and DNA sequences between organisms.
the fossil record.
homologous structures among different organisms.
acquired characteristics.
The accumulation of differences between populations that once formed a single population is called
coevolution
divergent evolution.
adaptation.
cumulative differentiation.
The process in which two or more species become more adapted over time to each other’s presence is called
competition.
coevolution.
radiation.
divergence.
Over millions of years, plants and their pollinators have
become competitive.
crossbred
become parasites.
coevolved.
While the shark and dolphin are similar in appearance, dolphins evolved from ancestors that were very different from sharks. The current similarity between sharks and dolphins is an example of
coevolution.
biogeography.
convergent evolution.
divergent evolution.
Artificial selection has been used by humans to
speed up the process of divergent evolution.
study the process of coevolution.
slow down the process of convergent evolution.
stop evolution in domestic animals.
Which of the following conditions can cause evolution to take place?
genetic drift
nonrandom mating
All of these
migration
Speciation can occur as a result of geographic isolation because
the biological concept of species defines individuals that do not interbreed as members of different species.
members of a species can no longer find mates.
populations that live in different environments may be exposed to different selection pressures.
All of these
What type of speciation occurs when new species arise as a result of geographic isolation?
sympatric speciation
postzygotic speciation
prezygotic speciation
allopatric speciation
Reproductive isolation differs from geographic isolation in that
geographic isolation never leads to speciation, whereas reproductive isolation sometimes does.
reproductive isolation only occurs after fertilization, whereas geographic isolation occurs before fertilization.
members of two species in which reproductive isolation occurs never try to interbreed, whereas geographically isolated ones do.
members of the same species are not physically separated in reproductive isolation, whereas they are separated in geographic isolation.
Which of the following is an example of postzygotic isolation?
A mating call is not recognized by a potential mate.
Mating times of potential mates differ
Offspring of two individuals of interbreeding species die early.
None of these
What type of population is most susceptible to loss of genetic variability as a result of genetic drift?
large populations
medium-sized populations
small populations
populations that fluctuate in size
A change in the frequency of a particular gene in one direction in a population is called
directional selection.
acquired variation.
chromosome drift.
stabilizing selection.
Which of the following is not a form of prezygotic isolation?
different months of flowering of two wildflower species
species-specific recognition proteins on the surfaces of egg and sperm cells
different courtship rituals of different species
the formation of a sterile hybrid between two species
