evolution practice exam Flashcards
People embracing the idea of the great Chain of Being did NOT believe in which of the following?
Organisms could appear, disappear, or move up and down the Chain
Ancient whales as seen from fossil evidence have
ankle bones
The oldest fossils
are found buried deepest in the ground.
Lamarck believed
- that evolution was a strive to become more perfect.
- in the inheritance of acquired characteristics.
- that giraffes’ necks elongated in response to stretching.
- that environmental pressures bring about changes in organisms.
Which theory was helpful to Darwin in the formulation of his theory of evolution?
continental drift
Glyptodonts were fossil forms that resembled
armadillos
The person credited with being the codiscoverer of natural selection was
Alfred Wallace
The sharp reduction of the gene pool and the numbers of a population through a severe epidemic is an example of
the bottleneck effect
Gene flow
- makes adjacent populations more similar.
- acts to prevent speciation.
- is a microevolutionary process.
- counteracts the effects of mutation, natural selection, and genetic drift.
Which of the following is NOT a characteristic of an unchanging, nonevolving population?
differential survival
what are the 4 characteristics of an unchanging, nonevolving population?
- random mating
- no mutation
- no migration or gene flow
- infinitely large population
The concept of a molecular clock is based on the idea that
neutral mutations occur at regular rates.
Which of the following is a reproductive isolation mechanism?
postzygotic
The wings of a bird and the wings of a butterfly are ? and show morphological ?.
analogous; convergence
Which of the following structures are analogous but NOT homologous to each other?
wing of a bird and the wing of a butterfly
