Critical Thinking - Question 3
A new class of echinoderms, the sea daisies or concentricycloids, was discovered in 1986. They are deep-water animals living on sunken wood. They are flat and round, looking very much like a small sea star without arms. They also lack a gut. Without ever having seen them, why do you think they were classified as echinoderms, not as members of a new phylum? Any hypotheses as to how they feed or move around?
I think the sea daisies were classified as echinoderms and not as members of a new phylum simply because they look very much like a small sea star without arms. Having this similarity definitely would mean that they are related somehow.
Hypotheses: Sea daisies feed and move around using the central part of their body.
STUDENT NOTES ONLY:
Echinoderms - Invertebrates (no back bone) with five-way radial symmetry (the regular arrangement of similar body parts around a central axis) and a water vascular system (a network of water-filled canals in echinoderms used on locomotion and food-gathering). Examples are sea cucumbers, starfishes, sea urchins, etc.
Phylum - The taxon (a group of organisms that share a common ancestry) that represents a main division of a kingdom
Hypotheses - A statement that might be true.
CITE: Picture obtained from http://images.google.com/images?gbv=2&svnum=10&hl=en&q
Saturday, September 15, 2007
Subscribe to:
Post Comments (Atom)
7 comments:
In my view one and all may read this.
Wow that was unusual. I just wrote an incredibly long
comment but after I clicked submit my comment didn't appear. Grrrr... well I'm not writing all that
over again. Regardless, just wanted to say superb blog!
Also visit my web site; best registry Cleaners
The clobber of a automobile party snitch on obviously depends upon the estimate and lineage of punch it has to do. There are extraordinary sizes of machines of the unvaried congenial an eye to the aid of machining different sizes of castings and forgings, also there are different kinds of machines as a replacement for doing the even so sympathetic of loosen in disparate grades of refinement. An business cogitation is to clothed as infrequent machines as achievable to do as great a number of furrow as achievable, and this is most suitable practised not later than choosing high-grade machines which are not but adapted to character of in the works,
http://belir.org.pl/e-biznes/5869/
http://besul.sanok.pl/biznes-i-firma/3994/
http://www.xero-kota.eu/firmy_biznes_finanse/wozki_magazynowe,i,2692.html
http://tasbur.com.pl/spolka/5066/
http://www.2uh.pl/nauka/geologia-pd430/
http://design5.pl/tag/tablet/
http://aleleru.com.pl/spolka/4629/
http://www.upgrade.net.pl/komputery/polacz-sie-ze-swiatem
http://ightton.com.pl/?p=6544
http://katalog.linuxiarze.pl/tag,ciekawe,strony/
kyrie 5 spongebob
louboutin shoes
kyrie 5 shoes
yeezy boost 350 v2
lebron 17 shoes
vans shoes
kyrie irving shoes
jordan shoes
air force 1
vapormax
supreme clothing
russell westbrook shoes
nike air force 1
goyard handbags
kd 12
birkin bag
curry shoes
balenciaga shoes
stephen curry shoes
cheap jordans
kd shoes
supreme
jordan outlet
off white t shirt
off white hoodie
giannis shoes
golden goose shoes
palm angels
golden goose
jordan outlet
nike off white
kyrie shoes
jordan outlet
fear of god clothing
supreme new york
Post a Comment