Barrons AP Environmental Science

successfully    with

changes in  the

environment.

testing and research

before  allowing

GMOs    to  be  used

–   Require package

labeling    for all

products    that    use

GMOs

Water   pollution As    a   result  of  water

pollution,  high

nutrient    levels  or  low

dissolved   oxygen

levels  can be  lethal  to

some    species.

–   Stricter    penalties

and tougher

regulations for

companies   that

pollute

–   Require secondary

and tertiary

treatment   methods

for all water

treatment   plants

–   Use recycled    water

Natural Selection

Natural selection is the mechanism by which organisms evolve. Natural selection
works on the individual level by determining which organisms have adaptations
that allow them to survive, reproduce, and be able to pass on those adaptive traits
to their offspring. It occurs over successive generations.

Natural Selection

Process of  Natural Selection Description

Competition There   is  a   struggle    to  survive,    and

competition exists  for limited

resources.

Disproportionate    increase    and

changes in  the body    of  an

organism    in  response    to  genetic

mutation    or  certain environmental

changes

Variations  that    are advantageous

to  the individual  in  terms   of

survival    allow   more    organisms

possessing  the trait(s)    to  survive,

reproduce,  and pass    on  the

characteristic(s)   to  future