Final Section
Native American Studies 301c with Kalthoff at University of Texas - Austin
About this deck
By: isabel ramirez
Created: 2010-12-13
Size: 34 flashcards
Views: 4
Created: 2010-12-13
Size: 34 flashcards
Views: 4
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what are the two options for feeding the growing population?
increase the area used as cropland and
to increase average crop yield
green evolution
is based largely on high yielding breeds of wheat, rice, and corn
second green evolution
based on genetic engineering
what percentage of water if fresh water?
2.6%
the remaining water is...
finite but renewable
sea water desalination provides what percentage of water?
0.2%
how many are in poverty?
1 billion
how many humans have no adequate sanitation facilities
2.5 billion
what are the principal greenhouse gases?
water vapor
carbon dioxide
methane
nitrous oxide
acid precipitation
results from sulfuric acid and nitric acid, formed when air pollutants react with water
smog
brownish-yellow haze in the air formed by fossil fuel combustion
how many dead zones exist
146
when did coal replace wood as the major fuel?
c. 1900
what is coal mainly used for
to produce electricity
when did oil surpass coal?
1966
what is oil used for?
fuel for transport
what is the most widely used energy source next to oil?
natural gas, mostly methane
what percentage of electricity is harbored by hydroelectric power plants?
20%
power density
amount of power produced or consumed per time and per area
hydrogen fuel cells
revert the electrolysis by generating electricity and water from hydrogen and oxygen
where are hormones produced?
endocrine glands such as pancreas or gonads
hypothalamus
a primitive part of the vertebrate brain, produce releasing hormones which reach the attached pituitary gland
what does the hypothalamus produce?
gonadotropin-releasing hormone (GnRH)
what does the GnRH do
it stimulates the pituitary gland
what does the pituitary gland produce?
luteinizing hormone (LH) and follicle-stimulating hormone (FSH) in both sexes
in males what does LH and FSH do?
they stimulate Leydig cells to produce testosterone and Sertoli cells of the testis to make anti_mullerian hormone
how do EDC act?
they mimick a hormone
they block a hormone receptor
interfere with synthesis, transport, or breakdown of a hormone
DDTs
an insecticide effective against fighting malaria and other insect borne diseases
nonylphenol
used as additives to pesticides, deterngents, personal care products, and plastics
PCBs
for use as lubricants, hydraulic fluids, cutting oils, and liquid seals
bisphenol A (BPA)
used as a monomer for polycarbonate and epoxy resins
dioxin
used as pesticides and wood preservatives also released by bleaching papers with chlorine, incinerating plastics and burning fossil fuels
cryptorchidism
undescended testicles
hypospadias
imperfect closure of the urogenital sinus into the penile urethra
About this deck
By: isabel ramirez
Created: 2010-12-13
Size: 34 flashcards
Views: 4
Created: 2010-12-13
Size: 34 flashcards
Views: 4
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“I have been getting MUCH better grades on all my tests for school. Flash cards, notes, and quizzes are great on here. Thanks!”
Kathy
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