Bio Exam 3 Study Guide

A Flash Card Set For My Third Exam In My College Biology 101 Class
 
Created May 20, 2010
by kdw032
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Side ASide B
  • most primitive in a particular lineage.
  • evolution.
  • variations found in populations.
  • any traits that make individuals more successful in a particular environment.
  • unique adaptation to harsh, but different environments.
Populations evolve; individuals...
do not.
  • new genetic variation.
  • migrants, crossing over, and sexual reproduction.
  • neither harm nor help
  • to have greater success.
  • to be at a disadvantage.
  • an optimum, average birthweight in humans of about 7 pounds and a modal clutch size in...
  • absent or undetectable.
  • extreme phenotypes.
  • males that are twice as large as females.
  • heterozygotes (HbA/HbS) have a reproductive advantage in an environment including malaria.
  • introducing a small group onto an island.
  • an epidemic drastically reduces the breeding population.
  • population numbers shrink.
  • Mutations
  • adaptations must match the environmental requirements.
  • human
  • fossilization was/is a rare event.
  • tracks, burrows, teeth, skeletons, or casts.
  • the ratio of isotope to daughter product in volcanic rocks.
  • ‘macroevolution.’
  • 3.5 BYA during the Archean eon.
  • similar selection.
  • convergence of form.
  • more
  • they act early.
  • similarities of ecology.
  • ‘molecular clock.’
  • are neutral.
 The different ‘kinds’ of organisms are also known as different
‘species.’
  • ‘reproductive isolation’
  • fertile progeny.
  • complete reproductive isolation.
  • evolutionary change.
species which use external fertilization are less likely to develop
reproductive isolation.
  • ‘isolating mechanism.’
  • speciation.
  • ‘prezygotic.’
  • ‘postzygotic’ or acting after the zygote has formed.
  • physical separation or geographic isolation.
  • ‘polyploids’ in a population.
  • ‘phylogenetic tree.’
  • ‘evolutionary relationships’
  • ‘adaptive radiations.’


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