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BIOB51H3 Lecture Notes - Crypsis, Theodosius Dobzhansky

Biological Sciences
Course Code
Maydianne Andrade

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BIOB51 Evolutionary Biology: Introduction
11/09/2012 14:04:00
Theodosius Dobzhansky: one of the first people to demonstrate genetic change
over time (over the course of seasons, a lifetime; a timescale which makes evolution
“Nothing in biology makes sense except in light of evolution”
similarity within diversity: mammals, fish, etc all different but all have
adaptations to help them swim
“good fit” =adaptation: a cactus that stores water where it only rains a couple
times a year
usocial: do not reproduce, just a single queen. When a female mole rat becomes a
queen, adds vertebrate to become able to carry more pups
Crypsis: camouflages into the surrounding environment, neural and motor
1. Big questions in biology
a. What accounts for the diversity of species
b. Why are organisms so well suited to environment (adaptation)
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