WorksheetsHistory of Life
Total questions: 38
Worksheet time: 1hrs 8mins
All organisms that do not fit into plant, fungi, and animal kingdoms but have a nucleus are:
archaebacteria
eubacteria
protists
monera
One limitation of the Linnaean classification system is that it
organizes organisms into groups.
allows scientists to discuss organisms.
does not use organisms’ common names.
is based on physical characteristics alone.
The embryos of both mammals and reptiles are protected by amniotic fluid. What is this type of trait called?
derived character
molecular evidence
cladogram
outgroup
In classification, a species is defined as
the most general taxon of the classification system.
a group with similar physical characteristics.
the commonly used name for an organism.
a group of organisms that can breed and produce offspring.
What is the function of a dichotomous key
It is a key to predict snow days
It is used to tag animals
It is used to make a cladogram
It is used to identify organisms
In the following cladogram, the hagfish is considered an outgroup because it
shares no derived characters with other groups being studied.
shares specific traits in common with the other species on the cladogram.
is the closest common ancestor to every other species.
has the ability to breed and produce offspring with each other.
The evolutionary history for a group of species which can be shown as a branching tree
Life history
Fossil record
Common ancestry
Phylogeny
Most scientists agree that ____________ should have the "last word" when it comes to figuring out how species are related.
Physical traits
Embryonic development
DNA
Classification
Which of the following are evidence for the endosymbiotic theory. Select all that apply.
Chloroplasts and Mitochondria are about the same size as bacteria.
Chloroplasts and Mitochondria have DNA with similar structure and nucleotide sequences to prokaryotes
Chloroplasts and Mitochondria reproduce by binary fission, the same method to which prokaryotes reproduce.
Chloroplast and Mitochondria originated from in-folding of the plasma membrane.
The oxygen gas present in our atmosphere today most likely originated from
the first plant species
decomposition by anaerobic bacteria
aerobic respiration producing oxygen from carbon dioxide
photosynthetic prokaryotes
Two or more species evolve together
convergent evolution
coevolution
punctuated equilibrium
adaptive radiation
Describes a patter of long, stable periods interrupted by brief periods of more rapid change
convergent evolution
coevolution
punctuated equilibrium
adaptive radiation
The evolution of an ancestral species into an array of species that occupy different niches
convergent evolution
coevolution
speciation
adaptive radiation
Using the diagram, by relative dating, which fossil could you hypothesize to be the oldest?
Gastropod
Trilobite
Crinoid
What two models used to describe the speed of evolution?
Artificial and natural selection
Gradualism and punctuated equilibrium
Adaptation and natural selection
Mass extinctions and speciation
High rates of speciation are seen in the fossil record following mass extinction events. This is most likely do to
High mutation rates following catastrophic events
Adaptive radiation in response to open niches
New relationships between surviving species forming coevolutionary pairs.
Increased sexual reproduction as organisms repopulate.
In ___ dating, fossils and surrounding rock are analyzed looking at their amounts of radioactive and nonradioactive (stable) isotopes.
absolute
relative
geologic
evolutionary
