ANSWERS
fossils of dogs showing they were from
What is an example of selective bread-
wolf ancestors (humans and wolfs were
ing?
competitors, then turned to companions)
a process used by humans that allows
only those animals with desired charac-
What is selective breading?
teristics to produce the next generation
of organisms.
Who proposed the idea of epigenesis William Harvey
concept that a fertilized human egg un-
define epigenesis dergoes developmental events that lead
to the formation of a human
a fertilized egg contained a tiny version
Define preformation of a fully developed adult (called a ho-
munculus)
Matthias Schleiden and Theodor
Who introduced the idea of cell theory (2)
Schwann
the idea that living things can sponta-
define spontaneous generation neously generate from non living compo-
nents
All living things are composed of cells
Define cell theory
and come from preexisting cells
Cell theory completely debunked the
spontaneous generation
idea of:
-more offspring than can be supported
-strongest will survive
explain natural selection
-strongest will reproduce
-adaptive variations lead to evolution
-new species come from old species
-traits are gradually adaptive
define evolution
-traits are more favorable to the environ-
ment
europeans domesticated animals which
What's the hypothesis between gene
allowed a slow adaptation to produce lac-
mutations to lactase?
tase
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