Multiple Choice
The change in the genetic makeup of a population over time is defined as...
What is evolution
Lions and tigers can mate to produce ligers, but ligers are sterile. This is an example of:
What is Reduced Hybrid Fertility
Many orchid species flower on different days.
What is 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:
What is Phenotypes
Which of the list below does not represent a driving mechanism of evolution?
What is extinction
Some species of salamander may interbreed, but most hybrids do not complete development. This is an example of:
What is Reduced Hybrid Viability
While in the same geographical area, one species of ant occupies tree bark, while another species of ant burrows underground.
What is Habitat Isolation
___________ is the most accurate evidence for understanding evolutionary relationships.
What is 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...
What is 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?
What is Allopatric Speciation.
Eastern and western male meadowlarks have different mating calls.
What is Behavioral Isolation
Differences between males & females of same species are a direct result of ___________________.
What is Sexual Selection
The fossil record gives a __________ visual of evolutionary change over time.
What is Incomplete
Which were the results of the Miller and Urey experiment?
What is organic compounds and amino acids formed.
Which option below best describes punctuated equilibrium?
What is 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.
What is 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.
Who is Darwin
Which of the following pieces of evidence best supports the endosymbiotic theory?
What is 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...
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?
What is Stabilizing Selection
Different flower species have stamens & styles that can only be pollinated by certain insects.
What is Mechanical Isolation
On a cladogram, the root represents a common ancestor of all the species in that _____________.
What is 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:
What is Artificial Selection