Multiple Choice
The change in the genetic makeup of a population over time is defined as...
A. Natural selection
B. Artificial selection
C. Evolution
D. Adaptations
What is C. Evolution
Lions and tigers can mate to produce ligers, but ligers are sterile. This is an example of:
A. Reduced Hybrid Viability
B. Reduced Hybrid Fertility
C. Hybrid Breakdown
D. Gametic Isolation
What is B. Reduced Hybrid Fertility
Many orchid species flower on different days.
A. Habitat Isolation
B. Temporal Isolation
C. Behavioral Isolation
D. Mechanical Isolation
E. Gametic Isolation
What is B. Temporal Isolation
True or False:
There is evidence that suggests all eukaryotes have evolved from a common ancestor.
What is true.
Natural selection acts on:
A. Phenotypes
B. Genotypes
C. Primates
D. Nomeates
What is A. Phenotypes
Which of the list below does not represent a driving mechanism of evolution?
A. Mutations
B. Genetic drift
C. Migration
D. Extinction
What is D. Extinction
Some species of salamander may interbreed, but most hybrids do not complete development. This is an example of:
A. Reduced Hybrid Viability
B. Reduced Hybrid Fertility
C. Hybrid Breakdown
D. Gametic Isolation
What is A. Reduced Hybrid Viability
While in the same geographical area, one species of ant occupies tree bark, while another species of ant burrows underground.
A. Habitat Isolation
B. Temporal Isolation
C. Behavioral Isolation
D. Mechanical Isolation
E. Gametic Isolation
What is A. Habitat Isolation
___________ is the most accurate evidence for understanding evolutionary relationships.
A. Genes
B. Chromosomes
C. RNA
D. DNA
What is D. DNA
True or False
The primary difference between phylogenetic trees and cladograms, is that cladograms show the amount of change over time.
What is false.
Rodents have monogastric stomachs that are strikingly similar to rabbits. These similar anatomical features are known as...
A. Convergent structures
B. Analogous structures
C. Homologous structures
D. Adaptive structures
What is C. Homologous Structures
A road is built in a forest area. The building separates some beetles (population B) from the remainder of their population (population A). Which speciation can result because of this event?
A. Allopatric speciation
B. Sympatric speciation
C. Natural speciation
D. Artificial speciation
What is A. Allopatric Speciation.
Eastern and western male meadowlarks have different mating calls.
A. Habitat Isolation
B. Temporal Isolation
C. Behavioral Isolation
D. Mechanical Isolation
E. Gametic Isolation
What is C. Behavioral Isolation
Differences between males & females of same species are a direct result of ___________________.
A. Natural Selection
B. Sexual Selection
C. Gender Selection
D. Primate Selection
What is B. Sexual Selection
The fossil record gives a __________ visual of evolutionary change over time.
A. Complete
B. Incomplete
C. Similar
D. Moderate
What is B. Incomplete
Which were the results of the Miller and Urey experiment?
A. Cellular organelles formed
B. RNA and macromolecules formed
C. DNA and amino acids formed
D. Organic compounds and amino acids formed
What is D. Organic compounds and amino acids formed.
Which option below best describes punctuated equilibrium?
A. When evolution occurs slowly over hundreds, thousands, or millions of years.
B. When evolution occurs rapidly after a long period of stasis.
C. A change in allele frequencies within a single species or population.
D. Large evolutionary patterns of change.
What is B. When evolution occurs rapidly after a long period of stasis.
Females from one species of firefly can only recognize the flashing patterns of males in their own species when in mating season.
A. Habitat Isolation
B. Temporal Isolation
C. Behavioral Isolation
D. Mechanical Isolation
E. Gametic Isolation
What is C. Behavioral Isolation
______________ observed that most organisms produce more than one or two offspring. The observation led directly to a hypothesis, individuals in a population compete for limited resources.
A. Darwin
B. Miller
C. Urey
D. Boyle
Who is A. Darwin
Which of the following pieces of evidence best supports the endosymbiotic theory?
A. Some organelles in eukaryotes have their own DNA similar to that of prokaryotes
B. Prokaryotes and eukaryotes are both surrounded by a phospholipid bilayer
C. Free living mitochondria and chloroplasts can be found and inserted into eukaryotes
D. Eukaryotes and prokaryotes frequently exchange cytoplasmic material
What is A. Some organelles in eukaryotes have their own DNA similar to that of prokaryotes.
Darwin’s observation that traits are heritable led him to the conclusion that...
A. Some individuals may survive longer and reproduce more than other members of the same species, passing their genes to subsequent offspring, which could result in a change to the populations characteristics over time.
B. Some populations do not increase in size indefinitely, which means competition for resources will occur; over time this can result in the adaption of individuals in the population.
C. Some food and shelter resources are limited in a population, this leads to selective pressures, which will result in differential survival and reproduction.
D. More offspring are produced than can survive, which results in survival of the fittest, thereby changing the allele frequency of the population over time.
What is A. Some individuals may survive longer and reproduce more than other members of the same species, passing their genes to subsequent offspring, which could result in a change to the populations characteristics over time.
The size of larvae is largely dependent on selective pressures. A particular larva is fed on by 2 organisms: birds and wasps. Birds choose large larvae, as they are easier to spot from far distances. Wasps choose small larvae, as they are easier to feed on. Over time, these opposing selection patterns will produce what type of selection for the larvae?
A. Directional selection
B. Stabilizing selection
C. Disruptive selection
D. Adaptive selection
What is B. Stabilizing Selection
Different flower species have stamens & styles that can only be pollinated by certain insects.
A. Habitat Isolation
B. Temporal Isolation
C. Behavioral Isolation
D. Mechanical Isolation
E. Gametic Isolation
What is D. Mechanical Isolation
On a cladogram, the root represents a common ancestor of all the species in that _____________.
A. Bloodline
B. Genotype
C. Cladogram
D. Phenogram
What is C. Cladogram
A farmer is looking to grow corn with only yellow kernels. He chooses plants with this phenotype and crosses them to produce offspring with the parental phenotype. Over several generations the vast majority of corn have only yellow kernels. This is an example of:
A. Artificial Selection
B. Cross-over
C. Hybrid Selection
D. Natural Selection
What is A. Artificial Selection