Ap bio environmental issues

hypoxic

Low o2

anoxic

no o2

hot water

Holds less o2

pollution

eutraphication

Bio magnification

eutrophication

1- fertilizer run off into water (sewage)

2-algae blooms bc they love all the nutrients (o2 goes up a bit/photosynthesis) and algae blocks sunlight from other plants (die)

3-algae dies and sinks to bottom

4-decomposers do cellular/aerobic respiration bc more nutrients to break down (use more o2 till none left)

5-dead zone created/everything died

What does bacteria do in eutrophication

sucks up all the o2 and everything dies

Biomagnification

the concentration of a toxin (substance) increases as you move up the food chain

DDT, mercury

Whole food web

DDT can

biomagnify

Fat soluable

Doesn’t get washed out

Bioaccumulation

1 individual throughout course of life has more toxins in body

Eutrophication caused by

Excess nutrients

Fertilizer into the water, sewage in the water

Climate change

caused by co2 (#1 reason) released from burning fossil fuels

Caused by methane and if we eat less meat it can help

Fossil fuels and what they are made of

-coal, oil, natural gas→when we release co2 they turn into a carbon source, they are in the ground (carbon sink) the co2 is isolated

Made of really old compressed dead things

Deforestation

trees (carbon sink) and burned (carbon source) from carbon sink to carbon source

Climate change affects

ocean acidification

Heat waves

Disruption of ocean currents

Disease spread

More allergies

Ocean acidification

co2 combines with h2o in ocean to form carbonic acid

Heat waves

whiplash weather

Flooding

Stringer hurricanes

Disruption of ocean currents

europe gets messed up

Disease spread

mosquitoes biting us

More allergies

plants make more matter and pollen from the glucose

Invasive species

non native species

Causes a problem

Disrupts the ecosystem