These are the most frequently used words in another edition of this book.
acids
again
already
alternatives
although
amino
animals
another
ants
arrangement
between
biological
birds
brain
case
chapter
complex
compound
context
convergence
convergent
course
despite
different
does
dolphins
earth
effectively
even
evidence
evolution
evolutionary
evolved
example
eyes
far
fig
first
fish
form
found
genes
genetic
given
group
history
however
human
important
insects
known
least
life
mammals
may
might
molecular
molecules
need
new
nor
note
now
number
origin
particular
perhaps
planets
plants
point
possibility
possible
probably
problem
process
proteins
quite
rather
remarkable
see
seems
should
show
similar
similarities
size
sort
species
still
structure
suggests
system
thus
time
two
various
vertebrates
world
years
yet