CH 1 Flashcards
(31 cards)
Our population experienced a drastic decline in numbers between yr 0 and yr 10. This would be considered a
Fact(D)
The virus, a “germ”, entered bodies of individuals and caused diseases leading to death of those individuals. Which level of scientific certainty did we associate this with in class?
Theory(C)
If we were responsible for introducing the virus because we predicted it would be useful in controlling an invasive population elsewhere in the world, though not very ethical, we could be operating at what level of scientific certainty?
Hypothesis(B)
Suppose 1% of the survivors had some genetic trait that made them immune to the virus. We would consider the trait an
Adaption(B)
Some of the survivors used resources in undocumented ways, therefore, we could say they evolved.
FALSEEE(B)
The population will continue to grow over the next 20 yrs due to vast availability of resources. this statement is a
Hypothesis (B)
The aggression displayed by certain sub-populations indicates that they are evolving to be more violent in order to survive
False(B)
Suppose those nomadic individuals reproduced at a rate of 7 offspring per female per year, and those of aggressive sub-pops produced 6 offspring per female per year, but acquired far more resources. we could conclude that
The nomadic individuals have higher fitness.(A)
The ability of those survivors to survive the virus had to do with a
mutation(A)
IF only 1% of our population had the immunity at time 0, and 95% had it at time 20, we could conclude that evolution has occurred.
True(A)
A farmer uses triazine herbicide to control pigweed in his field. For the first few years, it works well and almost all of the pigweed died. But after several years, the farmer sees more and more pigweed. What best explains this observation
Only triazine-resistant pigweed survived and reproduced more resistant pig weed(D)
Published observations supporting the process of evolution through natural selection
Wallace(B)
If we have 3 species that all fly, and one is a bird, ones a bat, and one is an insect, we would say that flight in these species has arisen through
Convergent evolution(C)
A faculty member at Texas A&M- Kingsville has come up with a hairless breed of rabbits that are heat resistant to use as food sources in Africa. What must have occurred first in order for this breed to exist?
Mutation(A)
In the case of this breed, we can say that human interference is promoting
Directional selection(C)
Also, this breed of hairless rabbits has undergone
Artificial selection(C)
The presence of mostly brown rabbits with large ears and small eyes when the explorers arrive indicates that _____ has been occurring
Natural selection(C)
In the Rabbit population, one could consider the brown color an ______ since it clearly gave those rabbits a selective advantage,
Adaptation(C)
The brown rabbits must have had higher ____ in order to become the dominant morph.
Fitness(D)
Suppose 100 years into the future there were white rabbits with large eyes and small ears that did not breed with the brown rabbits. We could say that we have seen
Sympatric speciation(B)
Individuals can evolve?
False(B)
The Following diagram depicts a graph in which generation 1 is in the center and generation 2 is moved to one direction only
Directional selection(B)
The following diagram depicts a graph where generation 1 is in the center, and generation 2 is on both sides, but not the center
Disruptive selection(C)
The following diagram depicts a graph where gen 1 is in the center, and gen 2 is small, thin, and tall, within gen 1
Stabilizing selection(A)
