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UA BSC 108 Exam 4 -Yates Graded A+
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UA BSC 108 Exam 4 -Yates Graded A+
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UA BSC 108 Exam 4 -Yates Graded A+3 examples of natural selection - ANSWER-pesticide resistance in insects
development of antibiotic-resistant bacteria
drug resistant strains of HIV
3 reasons for loss of biodiversity - ANSWER-habitat destruction
invasive species
- kudzu in alabama
overexploitation
abiotic factors - ANSWER-nonliving parts of an ecosystem
rain, soil, temperature
allopatric speciation - ANSWER-The formation of new species in populations that are
geographically isolated from one another.
Animals defenses against predators - ANSWER-behavioral
distraction displays
camouflage
chemical defenses
mimicry
aquatic biomes - ANSWER-freshwater < 1% salt water
marine ~3%
75% of earth is water
basic idea of natural selection - ANSWER-organisms can change over generations and
individuals with certain heritable traits leave more offspring than others
biogeography - ANSWER-Study of past and present distribution of organisms
biological magnification - ANSWER-increasing concentration of a harmful substance in
organisms at higher trophic levels in a food chain or food web
Biological Pyramid - ANSWER-
biosphere - ANSWER-the global ecosystem
biotic factors - ANSWER-living parts of an ecosystem
animals, plants, fungi, bacteria
carbon cycle - ANSWER-
, carrying capacity - ANSWER-Largest number of individuals of a population that a
environment can support
categories of freshwater - ANSWER-standing water: lakes and ponds
flowing water: rivers an streams
community - ANSWER-All the different populations that live together in an area
comparative anatomy - ANSWER-The comparison of body structures and how they vary
among species
comparative embryology - ANSWER-the study of the similarities and differences in the
embryos of different species
competitive exclusion principle - ANSWER-Ecological rule that states that no two
species can occupy the same exact niche in the same habitat at the same time
Darwin's observations of natural selection - ANSWER-overproduction
individual variation
Darwin's publication - ANSWER-On the Origin of Species by Means of Natural Selection
-evolve
-natural selection
Darwin's ship - ANSWER-HMS Beagle
directional selection - ANSWER-occurs when natural selection favors one of the
extreme variations of a trait
directional selection phenotypic graph - ANSWER-
disruptive selection - ANSWER-favors individuals at both extremes of the phenotypic
range
disruptive selection graph - ANSWER-
ecological niche - ANSWER-the sum of a species' use of the biotic and abiotic
resources in its environment
ecology - ANSWER-Scientific study of interactions among organisms and between
organisms and their environment
ecosystem - ANSWER-A biological community of interacting organisms and their
physical environment.
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