Fechar
transmittable diseases are called
% of deaths caused world wide by diseases
Disease death % in developed countries
Disease death % in developing countries
Greatest killing diesease in history of mankind
Seven greatest killing diseases in history
Seven deadly diseases of modern time
Disease affecting a large population
An epidemic that spreads
A disease-producing agent is called
When Illness is cause by a pathogen, it's labeled
Major Types of Pathogens
Major Bacterial Diseases:
Diseased caused by YERSINA PESTIS
Disease caused by ANIMAL VECTORS are
Anything that caries a disease is a
Hansen's disease is better known as
Leprosy effects how many people
Tuberculosis is also known as
Clostridium has toxins which cause
Number of people that die from diarrhea disease every year
2 Major diarrhea diseases
The leading infectious disease in the world
Sexually transmited disease caused by Treponema pallidum
causes blindness in 2 million people every year
Most common type of bacteria
Treptococcus mutans is found on
Who said bacteria causes diseases? & when?
"Bacteria causes infections" was universally excepted when?
First treatments against bacterial diseases
Antibiotics appeared when?
Major viral diseases
One of the Most easily spread infections
Shingles is caused by which virus?
Hepatitis B kills how many each year?
The body's immune response against viruses
Viruses causing the common cold are called?
This disease was called the american plague
AIDS stands for?
HIV stands for?
AIDS kills how many each year
Total AIDS victims so far?
65% of current AIDS victims are where?
HIV attacks these blood cells
Most effective weapon against viruses is?
this treatment DOES NOT work against viruses
Most effective way to prevent the spread of viruses
This pathogen resembles a bacteria but produces like a Virus
Rickettsia has a very strong resemblance to our
Best known ricketsia diseases
Mycology =
2 common fungal diseases
This is usually caused by fungus
Major Protozoan Diseases
Best known protozoan pathogen which causes Malaria
This is transmitted by contaminated water
Dysentery in Mexico, "travelers disease", is also called
Name 3 parasitic worms
Swelling of the lymphatic tissue
This pathogen was discovered in the 1990's
Prion =
2 major prion diseases are
Prions are mutated
Mad cow disease =
The prion disease known as KURU was find in
BSE is spread through the consumption of what?
Interacting individuals of species in a specific area at the same time
the area where a population lives
network of different populations living together
Communities interacting with each other and the environment
living components
non-living components
Role a species plays in the ecosystem
A species found usually in a specific habitat
Non-native and harmful. Also called
Introduced purposely
Introduced by accident
Examples of non-native species introduced
Shows effects of change in ecosystem.
(i.e frogs)
Central role in ecosystem
Examples of Keystone species
Organisms that make their own food
General plant eaters
leaf eaters
meat eaters
Insect eaters
Fish eaters
plant and animal eaters
Feed on dead organisms
The number of different chemical defenses known in nature? (mostly in plants)
Blending in with the background
A species appears similar to others
This type of warning usualy comes in BLACK and YELLOW
Warning Coloration appears in which colors the most?
Unique relationship between 2 different species
Symbiosis: Both species benefit
Symbiosis: One species benefits, other is unaffected
Symbiosis: One species benefits, one species harmed
A population of a species, or all of a species is no longer found
Since 1600, what % of extinctions were directly due to man?
% Currently at risk of extinction: Birds
% Currently at risk of extinction: Reptiles
% Currently at risk of extinction: mammals
% Currently at risk of extinction: plants
% Currently at risk of extinction: amphibians
% Currently at risk of extinction: Fish
Human extinction/endangerment case studies
Wrote the book "Silent Spring" and was considered the first environmentalist
How organisms interact with each other and with environment
All of the earths ecosystems. The Global ecosystem
Two major types of ecosystems
Where salt water and fresh water come together
Terrestrial Ecosystems are defined by
Organisms defining an ecosystem are usually
7 Principle BIOMES
Permanent frozen ground
Tundra is made of
5 Primary Biogeochemical cycles:
We are creating too much of this for the earth to handle
Sulfur combining with water vapor to create sulferic acid
Any substance in excess that is harmful to living organisms
Major air pollutants:
Carbon Monoxide=
Nitrogen dioxide
Elimination of this was a rare success story
Acid rain is also called
Acid rain occurs when PH is below
#1 problem facing man
Insulation blanket of the earth
Major greenhouse Gases
How much stronger is methane than CO2
Humans produce what % more methane than all natural sources
% of current global methane emissions are tied to human activity
This Biome is a major source of methane gas
How much more methane gas is trapped in ice and the ocean than the atmoshpere
The year temperature started being recorded
Circulation of oceanic water is called the
Consequence of global warming is
Ozone=
What % of harmful rays does ozone block?
The "Dream Chemical"
Can convert 100,000 ozone molecules to oxygen
Effects of lower ozone level on humans
% of water that is fresh water
How much of our fresh water is trapped in Glaciers
Areas where ground water flows
% of people in US that depend on groundwater for drinking water
#1 use of freshwater
River so polluted that it caught on fire
Major types of water pollution:
Examples of:
Infectious Agents
Examples of:
Inorganic Chemicals
Examples of:
Organic Chemicals
Examples of:
Plant Nutrients
Accumulation of toxins in food chain
Process when water has high concentration of nutrients
Algae Bloom
