Lab 7 Flashcards
(8 cards)
1
Q
Why is DDT harmful to seabirds?
A
it prevents them from absorbing calcium leading to brittle eggs that can break/crack
2
Q
The fact that DDT levels increase as you move up the food web is an example of…
A
biomagnification
3
Q
define biomagnification
A
the increase in concentration of a substance in the tissues of organisms as they move up the food chain
4
Q
In our lab simulation, what was the species with the highest amount of DDT?
A
osprey
5
Q
define weather
A
short term atmosphere conditions at a specific time and place
6
Q
define climate
A
average weather pattern over a long period of time
7
Q
How many acres does the average American need to support their lifestyle?
A
25
8
Q
How many acres are available for each human on the planet?
A
5
