TERM 1
7: Newts vs.
Snakes
DEFINITION 1
Newts have poisin toxin called TTX an d the only predator known to
be resistant to it is the garter snake. The resistance varies as
doesthe TTX production and differen t species exhibit new degrees
of resistance and toxicity. **The var iation in predator and prey
sets for CO EVOLUTIONARY arms rac e in which selection favors
increasingly resistant snakes and inc reasingly toxic newts.
TERM 2
7What are the advantages and disadvantages
of all colors?
DEFINITION 2
Vitamin D is made by the skin from sunlight; Darker skin
color indicates less vitamin D present in the skin. BUT skin
containing large amounts of melanin, or darker skin, provides
greater protection from UV rays. As a result, boths colors
have both.
TERM 3
7What are the adaptations of the non-
poisonous snakes eating plants that would
make them sick?
DEFINITION 3
the predators and they prey (the snakes and the newts) will
both evolve to be better than the other.
TERM 4
7 Malaria
DEFINITION 4
1 biggest human killer! Carried by mosquitoes. Malaria dates
back all the way to China in 2700 BC and is attributed to the
fall of several major populations! Malarias effect on humans
is relatively recent w the spread of agriculture, 10,000 yrs
ago. **Today it effects 300-500 million ppl, and 2 million die
from it every year!
TERM 5
7 What is the significance of combination drug
therapy?
DEFINITION 5
The chance of an organism harborin g resistant mutations to 2 or
more drugs is a product of the freque ncy of resistance to each
drug AKA there's a much slimmer ch ance of the rise of resistance
to drug combinations. Combo drug therapy has been the strategy
that has made all the difference in c ombating HIV. Hits parasite w
multiple drugs and appears to work we ll.
