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Today:
Intro to Animals
Skills needed for the
exams:
http://wisdomquarterly.blogspot.com/2008/07/painful-facts-dukkha.html
Skills needed for the
exams:
1. Understand material
from lecture.
Quizzes can help
diagnose.
Be self-critical and
skeptical.
http://wisdomquarterly.blogspot.com/2008/07/painful-facts-dukkha.html
Skills needed for the
exams:
1. Understand
material from lecture.
2. Be able to apply
the information.
http://www.youtube.com/watch?v=lDbSbOsoRnY
Skills needed for the
exams:
2. Be able to apply the
information.
Lecture is presented
linearly, but applying
the information may
mean seeing it nonlinearly.
http://wisdomquarterly.blogspot.com/2008/07/painful-facts-dukkha.html
Skills needed for the
exams:
3. Communicate what
you know.
If I answered your
question with what you
wrote down, would it
make sense?
http://wisdomquarterly.blogspot.com/2008/07/painful-facts-dukkha.html
Skills needed for the
exams:
1. Understand material
from lecture.
2. Be able to apply the
information.
3. Communicate what
you know.
http://www.mac-pac.org/temp/motivation.html
Global area planted with GM crops
Texas=70ha
http://www.gmo-compass.org/eng/agri_biotechnology/gmo_planting/257.global_gm_planting_2006.html
And http://www.monsanto.com.au/_images/global_area_chart.gif
Have GMO's been
beneficial, and what
are the risks?
We have genetically
modified both plants
and domesticated
animals...
What about humans?
Fig 20.22
Using viruses
to add genes
to humans
The material cost will soon be ~$1,000 to sequence a
complete human genome at a consumer cost of ~$5,000
http://www.nature.com/news/2008/081006/full/news.2008.1151.html
As with computer technology, the plunging cost of DNA sequencing has opened new applications in science and medicine.
Graph: ADAPTED FROM GRAPH PROVIDED BY JEFFREY SCHLOSS/NHGRI
GENE SEQUENCING: The Race for the $1000 Genome (17 March 2006) R Service Science 311:1544 - 1546
How close are we to picking our offspring?
Karyomapping is a new technique developed
at a British fertility clinic can test for 15,000
known genetic disorders. It takes DNA from
8-day-old in vitro fertilized embryos as well
as from the parents and possibly other
relatives.
The test costs ~$2,300.
http://news.bbc.co.uk/2/hi/health/7688299.stm
How close are we to picking our offspring?
“…the test could also be used, more
controversially, to detect a genetic profile
which showed a susceptibility to conditions
such as heart disease or cancer.”
http://news.bbc.co.uk/2/hi/health/7688299.stm
When does picking the ‘best’ become
choosing traits?
Sex ratio in China, est. 2008
at birth:
1.11 male(s)/female
under 15 years: 1.13 male(s)/female
15-64 years:
1.06 male(s)/female
Compare to U.S. at birth 1.05 male(s)/female
http://www.indexmundi.com/china/demographics_profile.html
When does picking the ‘best’ become
choosing traits?
What ‘abnormality’ might a parent choose?
One study found that each inch above average
may be worth $789 more in salary per year.
Journal of Applied Psychology T. Judge and D. Cable (Vol. 89, No. 3).
Animals
Life as
we
know
it…
Fig 26.21
One important consideration of structure and
function…surface area
http://www.celebratebig.com/chile/index3.htm
Nalca leaves
One important
consideration of structure
and function…surface area
Fig 40.3
Why is surface area
so critical?
Animals (and plants)
must exchange
various components
with the environment
Fig 40.4
Organisms are organized:
atoms
molecules
organelles
cells
organisms
tissues
organs
systems
Fig 1.4
Fig 40.5
Four major tissue types in animals:
epithelial, connective, muscle, and nervous
Fig 40.5
Epithelieal
tissue:
Covers and
lines body
and/or parts.
Tightly packed
cells.
Fig 40.5
Connective
tissue:
Holds and
supports. Few
cells with an
extensive
extracellular
matrix.
Muscle tissue:
Movement.
Long muscle
fibers cells.
Nerve tissue:
Signaling.
Generally long
cells, neurons.
Fig 40.5
Fig 40.5
Different tissues that
comprise the stomach,
an organ.
Next: the Nervous System
Fig 48.3