Download Biology Objective 3

Biology Objective 3
Demonstrate an understanding of the
interdependence of organisms and the
environment.
Parasites . . .
Parasites harm or
kill the host. A
good example is
a tape worm. It
intercepts all of
the hosts food,
causing the host
to starve to death.
All energy on the earth comes
from the sun.
Viruses
• Viruses are not alive
because they can not
reproduce on their
own, and
Viruses
• Viruses are not alive
because they can not
reproduce on their
own, and
• They do not grow and
develop and
Viruses
• Viruses are not alive
because they can not
reproduce on their
own, and
• They do not grow and
develop and
• They do not exchange
with their environment
Viral Illnesses
• Measles, mumps, colds,
influenza, Cold Sores,
mononucleosis, Epstein-Barr
virus are all illnesses that are
caused by a virus.
Viral Illnesses
• Measles, mumps, colds,
influenza, Cold Sores,
mononucleosis, Epstein-Barr
virus are all illnesses that are
caused by a virus.
• A Virus is has a coat, a strand
inside of DNA or RNA, and some
type of attachment appendage.
Viral Illnesses
• Measles, mumps, colds,
influenza, Cold Sores,
mononucleosis, Epstein-Barr
virus are all illnesses that are
caused by a virus.
• A Virus is has a coat, a strand
inside of DNA or RNA, and some
type of attachment appendage.
Bacteria
• Bacteria can cause illnesses too, however 90%
of all bacteria is helpful, NOT harmful.
Bacteria
• Bacteria can cause illnesses too, however 90%
of all bacteria is helpful, NOT harmful.
• Without bacteria, you would not be able to make
or eat cheese or ice cream. Without them, you
would be ill most of the time.
Bacteria
• Bacteria can cause illnesses too, however 90%
of all bacteria is helpful, NOT harmful.
• Without bacteria, you would not be able to make
or eat cheese or ice cream. Without them, you
would be ill most of the time.
• Strep Throat and Staph infections are examples
of bacterial infections.