WorksheetsEvolution
Total questions: 17
Worksheet time: 10mins
Name
Class
Date
1.
Which of the following correctly describes the general trend in hominid evolution?
a)
thickening of the skull, protruding teeth, organized hunting
b)
large canine teeth, small skulls, diet of coarse plant material
c)
larger body size, broad forehead, smaller brains
d)
increase in brain capacity, bipedalism, use of tools
2.
Scientists theorize that it took a billion years or more for oxygen in the atmosphere to reach the levels of today. Based on this idea, the first cells could be classified as which of the following?
a)
aerobic
b)
anerobic
c)
eukaryotic
d)
heterotrophic
3.
Suppose a family of black wolves migrates across a land bridge to a region supporting a large population of gray wolves. A few generations later, the population consists entirely of wolves with black and gray markings. Which of the following best describes the mechanism that caused this change in the population of the wolves in the region?
a)
Genetic mutations naturally occurred in the black and gray wolf populations, resulting in both groups simultaneously developing black and gray coat markings.
b)
The flow of black wolf genes across the land bridge added to the gray wolf population’s gene pool, increasing the frequency of the genes for black fur in the population.
c)
The gray wolves selected other gray wolves over black wolves as mates, causing a limit to the gray wolf gene pool that resulted in genetic drift.
d)
The wolves with gray coats had to compete for resources with the successful black wolves, so they adapted their coats to mimic the black wolves.
4.
Fossils sometimes show that a single species or a small group of species has evolved into diverse forms that live in different ways. An example of this would be a group of present-day mammals all having a common ancestor. Which term describes this phenomenon?
a)
adaptive radiation
b)
convergent evolution
c)
gradualism
d)
mutualism
5.
Which of the following does NOT describe the observable trends in hominid
a)
changes in hair and skin color
b)
development of tools use and language
c)
changes in jaw size and cranial capacity
d)
development of bipedal locomotion and increase in brain mass
6.
Humans and chimpanzees have almost identical DNA and many similarities in anatomy. Which statement about the evolutionary relationship between modern humans and chimpanzees is supported by these facts?
a)
Humans and chimpanzees share a common ancestor.
b)
Humans and chimpanzees are unrelated.
c)
Humans are a more evolved version of chimpanzees
d)
Humans descended directly from chimpanzees.
7.
Over time, the climate of an island became drier, which resulted in changes to the populations of various island finch species. Finch populations with a certain beak shape thrived, while those not having that beak shape decreased. Which of the following describes a necessary condition for these changes in the finch populations to occur?
a)
fewer off springs
b)
overproduction of offsprings
c)
limited food source
d)
limited beak variation
8.
How is scientific theory of evolution supported by the comparison of the skulls and skeletons of modern humans and extinct hominids?
a)
Similarity in skull shapes, hands, and hips between extinct hominids and humans supports a common ancestry.
b)
By making the hip, spine, and skull comparisons, the age of the different hominid specimens can be determined.
c)
Comparison of skull and skeleton provides evidence that humans and different hominid species interacted.
d)
Skull and skeleton comparisons can explain why hominids were inferior and became extinct while humans evolved.
9.
How does comparing the skeletons of these animals provide support for the scientific theory of evolution?
a)
It shows possible chromosomal similarities between organisms.
b)
It provides information about the organisms’ habitats.
c)
It shows possible common ancestry between organisms.
d)
It provides information to determine the organisms’ ages.
10.
Biologists have considered two different explanations to the rate of evolution: gradualism and punctuated equilibrium. How would the fossil record indicate that an organism had evolved via punctuated equilibrium?
a)
The fossil record would show a slow, steady rate of change from a common ancestor.
b)
The fossil record would be incomplete, and numerous holes would exist within the ancestral record.
c)
The fossil record would show rapid change over an extended period of time, with occasional periods of little change.
d)
The fossil record would show little change over long periods of time, followed by a sudden, brief period of rapid change.
11.
The obelisks of Ancient Egypt are some of the oldest timekeepers on record. How did the obelisks measure time?
a)
by tracking stars
b)
by draining water
c)
by measuring shadows
d)
by burning incense
12.
Which statement accurately describes the way that adenosine triphosphate (ATP) transfers energy within a cell?
a)
An ATP molecule reacts with water and loses a phosphate group, breaking a bond and releasing energy.
b)
ATP molecules break up sugars such as glucose into energy-rich compounds like lactose.
c)
ATP molecules ionize oxygen molecules, which give up electrons that can then be used for energy.
d)
ATP molecules split carbon dioxide molecules, and the carbon is used as fuel by the cell.
13.
Which statement is true about bacterial cells?
a)
They have organelles.
b)
They are eukaryotes
c)
The cells have no nucleus.
d)
The cells are very large.-
14.
Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?
a)
Only species Y is aerobic
b)
Only species Y is anerobic
c)
Both species X and Y are aerobic.
d)
Both species X and Y are anaerobic.
15.
The allele for brown eyes is dominant to the allele for blue eyes. Which of the following best explains how two brown-eyed parents could produce a blue eyed child?
a)
Mutations after fertilization could alter gene sequences and change alleles.
b)
Only one parent must be carrying the recessive allele for blue eyes.
c)
Each parent must be carrying the recessive allele for blue eyes.
d)
One parent must have had only blue eyed parents.
16.
Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?
a)
Only species Y is aerobic.
b)
Only species Y is anaerobic.
c)
Both species X and Y are aerobic.
d)
Both species X and Y are anaerobic.
17.
Which statement is true about bacterial cells?
a)
They have organelles.
b)
They are eukaryotes
c)
The cells have no nucleus.
d)
The cells are very large.
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