Overall,how Do the Effects of the Major Mass Extinctions Compare

question 59

Multiple Choice

Overall,how do the effects of the major mass extinctions compare?

• A)Large terrestrial animals were always decimated while aquatic species survived
• B)Species that required light were always decimated because all extinctions were due to asteroid bombardment resulting in blackened sky
• C)Species appear to genetically "wear out" and mass extinctions "re-set" the evolutionary mechanisms
• D)Not all cataclysmic events were the same and organismal groups and phenotypes were different in each extinction;however lineages favored by effect macroevolution and species selection were more vulnerable
• E)There has not been any detected pattern to extinctions and they are probably random

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Definitions:

Need for Achievement

A psychological trait referring to an individual's desire for significant accomplishment, mastering of skills, control, or high standards of success.

Monozygotic Twins

Identical twins that develop from one zygote, which splits and forms two embryos, sharing exactly the same genetic material.

Dizygotic Twins

Also known as fraternal twins, these are siblings that are born at the same time but have developed from two different eggs fertilized by two different sperm.

Environmental Shared

The portion of the environment that is experienced identically by individuals, often used in contrast to "non-shared environment" in studies of heritability.