Some announcements…
Lab is worth 140 points, including
50 points for participation and attendance
Points off for tardiness and absences
Exams include material from text, other readings,
lecture and lab.
Study guide to exam will be online by next Thursday before
field trip
5-minute presentations are worth 5 points extra credit.
Today:
- Martin Marquez presentation (online, too)
-Invertebrates - Sponges & Cnidarians
-The ultimate cooperators!
Chapter 5
Animal Beginnings: The Protozoans
•
Fig. 5.2, A planktonic foraminiferan, Globigerina. (a) Drawing of an intact
animal emphasizing extended pseudopodia. From Brady 1884. (b) Photograph of
Globigerina test.
Chapter 5
Defining Animals
• Members of kingdom Animalia are typically
distinguished from the Protista by
• the presence of contractile muscles,
• signal-conducting neurons,
• and multicellular bodies
Other characteristics (=characters) of animals:
Ingest food particles for nutrition (heterotrophic)
Greater dependence on sexual reproduction (comp with protists)
25 phyla of animals are significantly
represented in marine environment (table 5.1, text)
13 phyla
7 phyla
exclusively marine,
50% or more marine
20 phyla
(80%) marine or mostly marine
Chapter 5
Sponges (Phylum Porifera)
Multicellular (loosely aggregated cells)
No true tissues (totipotent cells = have
potential to become any other cell type)
Pores, holes and channels
Mostly marine
Internal support with spicules (of calcium
carbonate, silica, spongin)
Chapter 5
Sponges
•Fig. 5.6 A group of marine
• finger sponges and
•several of the specialized
•cell types that make
•up the sponge wall.
Sponges (Phylum Porifera), more characters…
Aquiferous system (pump water through their
bodies) for feeding, reproduction, gas and
nutrient exchange
Asexual and sexual reproduction
Many symbioses with bacteria and other
animals!
(video clip on shrimp in sponge cavities)
Field Trip information!
US State Department Public Announcement
http://travel.state.gov/travel/cis_pa_tw/pa/pa_2100.html
CAMPUS ALERT!
January 31, 2005
Sergean t Eugene V. Mejia
Office #: 520-626-8007 Pager #: 520-218-5457
Travel Warning
The University of Arizona has been made aware of a wa rning on travel along the Mexican
Border due to an unstable crimi nal sit uation. The warning dated Janua ry 26, 2005, and
distributed by the U.S. Department of State indicates, .S. citizens shou ld be aware of the
risk posed by the deteriorating securit y sit uation.Σ The publ ic announc ement will expire on
April 25, 2005.
iolent Criminal activit y along the U.S.-Mexico Border has increased as a produc t of a war
between crimi nal organ izations strugg li ng for control of the lucrative narcotics trade along
the border.Σ
The UAPD and the Universit y of Arizona Dean of Studen ts Offi ce would li ke to warn
students and staff of the potential dange rs invo lved in trave l along the indicated area.
Visiti ng the U.S. State Department websit e at www .state.gov or contacting your U.S.
consulate before you trave l is sugges ted.
If you hav e que stions on trave l safety p lease con tact the UAPD crime preven tion o ffi ce
for info rmation at 621-4219.
Posted on course web page “announcements”
ASSUMPTION OF RISK AND RELEASE FORM
THIS IS A RELEASE OF LEGAL RIGHTS -- READ AND UNDERSTAND BEFORE
SIGNING.
Name of Appli cant:__________________________________________
Date of Birt h:_____________________________
(If Applicant is under 18 years of age, a parent or legal guardian must also read and sign this form.)
Program: ___________________________________
I he reby agree as fo ll ows:
1. Risks of Study Abroa d. I under stand that participation in the Universit y of Arizona
Study Ab road Program specifi ed above (the "P rogram") invo lves ris ks no t found in study
at the Universit y. The se include risks invo lved in trave li ng to and within, and return ing
from, one or more foreign coun tries; foreign political, legal, social, and economi c
cond iti ons ; different standa rds of design, safety and maintenanc e of buil dings , pub li c
places and conveyanc es; local medical and weather cond iti ons; and o ther matters
described on a separate Program Risk form which I have received , reviewed, and
initi aled, and which is inco rporated by referenc e in this Release Form. I hav e made my
own inves tigation and am wil ling to accept these ris ks.
…
2.
Institutional Arra ngements. I under stand that the Univer sit y doe s no t represent
or act as an agen t for, and canno t cont rol the acts or omis sions of, any ho st instit ution,
hos t family, transportation carrier, hotel, tour organizer
Sign release form in lab on Monday
For entire release form, see course web page “announcements”
Field Trip Update
• Must tell me (KM) or TA by Monday in lab Feb 7
at latest if you are not going on field trip, $8.50
due in lab for one dinner.
• No-shows on field trip lose 50 points
• Sign slip acknowledging risk and presentation
• Sign in today that you heard presentation
• $50 refund if you don’t go (credit to account)
• Alternative assignment worth 100 pts (17% of
grade)
Alternative Assignment to Field Trip (100 pts)
•lab practical on invertebrate classification and
ecology in lab, Feb 14th (50 pts), AND
•10 page research paper on pre-approved topic
(summarizing 6 minimum research articles
from primary lit) (40 pts) Due Feb 28, AND
•Public presentation on paper topic (webpage,
or 5-minute presentation in lecture/lab, or
printed flyer/brochure) due Feb 28th (10 pts)
posted on course webpage
http://eebweb.arizona.edu/COURSES/Ecol183/index1.html
Questions?
Contact me at 626-5076, mangin@u.arizona.edu
To summarize field trip update:
•Field trip is optional (due to public announcement)
•Alternative assignment is rigorous, and worth 17% of grade
•MUST tell me or TA in lab Feb 7 if you are NOT going
•We will assume that you ARE going if we don’t know by end of
your lab next Monday
•No $50 credit if we don’t know by Monday. Feb 7 lab, and
minus 50 points if you are a no-show for field trip
•Course website has public announcements