Darwin used the finches in the Galapagos Islands to:
a. Explain adaptation
b. That the South American finches could reach these distant island
c. That South American finches have the genetic variation to evolve in the island species
d. That overpopulat
A cline is important to evolutionary biology because
a. It provides a clear example of genetic drif
b. It provides a clear example of animals migrating over vast distances
c. It illustrates that natural selection appears to be changing allele frequenci
Past Questions on Genetics
In Mendelian genetics, a test cross is:
mating a homozygous recessive individual with any phenotype.
mating a heterozygous dominant individual with one that is heterozygous recessive
mating a homozygous dominan
Past Speciation Questions
Consider two clear species as defined by the Biological Species Concept:
a. Fertile hybrids can be quite common if they are selected against intensively
b. Fertile hybrids can be continuously present but relatively uncommon
1. _ have a digestive tract that is not at all connected to the mesoderm.
d. A and B
e. A and C
2. You are studying embryonic development. In your organism, at the 8-cell stage, each individual cell has a r
1. Actinopterygii and Actinista share the following characteristics
Lungs or lung derivatives
Limbs with digits
None of the above
2. Cephalochordata have which of the following traits?
Frequency dependent selection suggests that the benefits of a trait
a. Is dependent on other commonly compatible traits also being present.
b. Is dependent on the frequency of the trait relative to other traits
c. Is dependent on the frequency of preda