Reference no: EM133934034
Questions
1. The owl paper notes "The relative role of evolutionary versus ecological response in relation to climate change is still largely unexplored" This means:
a) As the climate changes, we aren't sure if organisms are able to have heritable traits
b) As the climate changes, we aren't sure if organisms will more often respond with population movement, or with responses through selection
c) As the climate changes, individuals will adapt to that new environment
d) As the climate changes, individuals will choose to move poleward
2. True or False: A histogram that is described as "bimodal" appears to contain two distinct, partially overlapping distributions - the term refers to two distributions each with a distinct mode (most common value)
3. Plumage color in owls has a heritability of around 0.8. This observation of heritability suggests that
a) Strong selection on plumage color will have only a very small effect
b) Strong selection on plumage color will have a large effect
c) Genetic drift will be a more important evolutionary mechanism
d) None of the above
4. Statistical modeling of survival probabilities over three decades suggested that
a) Grey individuals had lower survival in heavy snow than brown ones
b) Brown individuals had lower survival in heavy snow than grey ones
c) The plumage color trait is likely caused by interactions of many genes
d) There are no noticeable changes in climate in Scandinavia
5. True or False: A porcelain crab (pictured) cannot move - and thus certainly cannot reproduce - at 6°C. It dies when the water temperature reaches 36°C. This species was known only from the tropical Caribbean Sea through the 1980s, but has since expanded its range along the southeastern U.S. coast as far as the North Carolina border. The distance this crab has moved poleward in the past 30-40 years is an example of measuring climate velocity.
6. Referring to the same porcelain crab, what could be a hypothesis about populations found close to the equator?
a) If water temperatures are getting warmer, populations of porcelain crabs are declining in tropical regions
b) If water temperatures are getting warmer, populations of porcelain crabs are increasing in tropical regions
c) Both (a) and (b) represent testable hypotheses
7. The change in distribution of a species or population, as the environment changes, may include
a) latitude b)elevation c)depth d)all of the above
8. What are some factors other than environmental temperature that organisms must respond to because of increasing carbon dioxide concentration in our atmosphere?
a) harder to breathe b)reduced aerial visibility c)lower pH aquatic environments d)none of the above