41. Microevolution is defined as:
Changes in population size
Changes in the frequency of alleles in the gene pool
Changes in the composition of the population
Emergence of new species
Changes in community size
42. A zorse is the offspring produced through interbreedingbetween a horse and a zebra. Zorses are often preferred for ridingbecause of their physical shape, but they are sterile. According toLinnaean taxonomy, are zebras and horses classified in the samespecies?
Yes
No
Sometimes
Not enough information to determine
43. Red rose color is incompletely dominant over white rosecolor. If a red rose is crossed with a pink rose, what percentageof the offspring will be pink?
100
75
50
25
44. Honey bees engage in entomophily, pollinationthrough pollen distribution, as part of the process to producehoney. What is entomophily an example of?
Ecosystem
Niche
Community
Habitat
45. The majority of climate scientists suggest that the currentchange in climate is caused predominantly by ________.
An enhancement of the greenhouse effect
A decreased reliance on fossil fuels for energy
A thinning of the ozone layer
A melting of the polar ice caps
An increase in solar radiation
46. Which of the following is not an expected effect of globalclimate change?
A rise in the sea levels
Flooding of coastal cities
Decrease in the size of glaciers and ice sheets
Increase in the size of glacier and ice sheets
More extreme weather
47. If a wolf eats a rodent which ate a small insect which ate aplant, the wolf would be a(n)
Autotroph
Primary producer
Primary consumer
Secondary consumer
Tertiary consumer
48. The organisms that represent the different species within anecosystem that interact in various ways, comprise a_______________
Population
Trophic level
Species
Community
Habitat
49. Inheritable mutations, which may allow a population toevolve, are produced
As a response to selection pressure
By chance
By natural selection
As a response to environmental pressure
By artificial selection
50. The ability of fireflies and angler fish to produce light isan example of convergent evolution. What can you conclude aboutthese two animals based on this information?
They share a recent common ancestor
The ability to produce light is an ancient trait
They are found in the same location
They are both adapted to environments which are low in light
All of the above
