41. Microevolution is defined as: Changes in population size Changes in the freq
ID: 45550 • Letter: 4
Question
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 interbreeding between a horse and a zebra. Zorses are often preferred for riding because of their physical shape, but they are sterile. According to Linnaean taxonomy, are zebras and horses classified in the same species?
Yes
No
Sometimes
Not enough information to determine
43. Red rose color is incompletely dominant over white rose color. If a red rose is crossed with a pink rose, what percentage of the offspring will be pink?
100
75
50
25
44. Honey bees engage in entomophily, pollination through pollen distribution, as part of the process to produce honey. What is entomophily an example of?
Ecosystem
Niche
Community
Habitat
45. The majority of climate scientists suggest that the current change 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 global climate 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 a plant, the wolf would be a(n)
Autotroph
Primary producer
Primary consumer
Secondary consumer
Tertiary consumer
48. The organisms that represent the different species within an ecosystem that interact in various ways, comprise a _______________
Population
Trophic level
Species
Community
Habitat
49. Inheritable mutations, which may allow a population to evolve, 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 is an example of convergent evolution. What can you conclude about these 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
Explanation / Answer
41. Microevolution is defined as the change in allele frequencies that occurs over time within a population. This change is due to four different processes: Mutation, gene flow, selection, and genetic drift. This is completely opposite to macroevolution.
Hence, the correct option is Changes in the frequency of alleles in the gene pool
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