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A student of animal life and structure
Almost all mammals limb bones are similar in structure |
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| the gradual changing of one species into another |
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| evolution by natural selection |
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proceeds differential success in reproduction.
Reproduction will increase a population rapidly unless factors limit it
Individuals of a given species are not identical
Some of the variation among individuals is inherited
Not all the offspring of a given generation survive to reproduce |
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| traits that increase the probability of having offspring, will predominate |
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evolution of anatomical and behavioral differences between males and females.
ex)tails of peacocks |
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evolutionary process by which responses to similar ecological features bring about similarities in behavior or structure among animals that are only distantly related
ex)body forms of tuna and dolphin are similar |
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| resemblance between features due to convergent evolution |
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resemblance based on common ancestry
ex)similarities in forelimb structures of mammals |
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refers to a similar function, even if structures look different
example) human hand and elephant trunk |
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| a change in the nucleotide sequence of a gene as a result of unfaithful replication |
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| study of inheritance, including the genes encoded in DNA |
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| complex condensed strands of DNA and associated proein molecules found in the nucleus of cells |
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group of species that resemble eachother because of shared inheritance
First name |
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group of individuals that can readily interbreed to produce fertile offspring
second name |
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| Evolutionary history of a particular group of organisms |
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| the classifcation of organisms. |
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| the strategies that different species use to obtain food are correlated to |
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| Vertebrates have all of these same things in common |
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development from a hollow dorsal neural tube
bilateral symmetry
segmentation
hierarchical control
separate systems
localization of function |
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| a cast of the cranial cavity of a skull, useful for studying fossils of extinct species |
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cerebral cortex that is made up of 6 layers.
neocortex is half the brain in some animals |
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a measure of brain size relative to body size
the size of each brain structure shows a highly linear relation to brain weight. |
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early toolmakers and users that were bipedal hominids
chimpanzee size brain |
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| The costs of a large brain |
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long gestation period
prolonged dependence of the infant
consumes alot of out metabolic budget |
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| adaptive advantages of a big brain |
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larger cortex means larger social network
social brain hypothesis
for humans max is 150 |
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