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Biology Ch 32 NG
Biology campbell 32
| Question | Answer |
|---|---|
| sessile | free swimming |
| planktonic | free swimming |
| Bilateral move what way | sessile, planktonic |
| Zygote-> _______-> blastula-> ______-> Gatrula | clevage, gastrulation |
| tissues- | in most animals, embryo becomes layered -ectoderm-endoderm-mesoderm |
| diploblastic | ectoderm, endoderm |
| triblobastic | mesoderm |
| ectoderm | covers surface of embryo gives rise to outer covering, and the CNS in some phyla |
| Endoderm | innermost layer, lines pouch that forms during gastrulation gives rise to lining of digestive tract organs |
| Mesoderm(triploblatic also) | fills spacce b/w ecto and endo gives rise to muscles and most organs b/w dig. tract and outer covering |
| body cavities | most triploblastic animals have a coelom(coelomate) |
| coelomates | have a mesoderm fluid or air filled soace b/w dig. tract and outer wall |
| most triploblastic animals have a _____ | coelom(coelomate) |
| Coelom function | fluid cushin internal organs, prevents injury, can function as hydrostatic skeleton |
| hydrostatic skeleton | soft-bodied animals allows independent movement and groeth of organs from outer body wall burrowing, swimming, etc |
| coelom conditions | acoelomate, pseudocoelomate, coelomate |
| acoelomate | no body cavity platyheliminthes |
| Pseudocoelomate | cavity from meso and endo nematoda |
| coelomate | cavity from mesoderm annelida, etc. |
| Coelomates -> | Protosomes and Deuterostome |
| protsome and deutersome development? | 1st mouth and 2nd mouth developmental modes 1. clevage 2. coelom formation 3. fate of blastospore |
| protsome vs. deutersome development | alot clevage coelom formation fate of blastospore |
| where does mouth form from in protsomes? | blastospore first opening makes the mouth |
| where does mouth form from in deutersome | |
| chordate slides | on hawkeye academic share know those charts |
| ppt slides on academic share lab and lecture | |
| 32 word concept list is up !!! | |
| read ch 32 | |
| 33 34 35 | |
| documentary on academic share link | |
| choanoflagellates | closest living representation to animals |
| evidence that choanoflagellates and animals are closely related | morphologically chonoflag cells and collar cells are very similar similar collar cells in other animals including snidarians, flatworms, and echnioderms, DNA sequences data indicate that choanoflags and animals are sister groups |
| similar collar cells are in other animals but never observed in | non choanoflagellates protist plants or fungi |
| cnidarians, flatworms, echinoderms | collar cells |
| sister group | |
| Figure 32.3 | |
| fig 32.10 | cladogram based on morphological and developmental poatterns |
| metazoa = | animals |
| what do sponges lack | it is a metazoan but does not have true tissues |
| bilateria breaks in to two groups _, _ | deuterostome, and protosomes |
| lophotrochozoa | some develop feeding structure called alophophore: others have a distinct larval stage |
| Ecdysozoans | secret external skeletons and molt in order to grow |
| ecdysis | molt in order to grow |
| deutersomes and 2 division for non deuteros: | 1. Lophotrochozoa 2. ecdysocoa |
| General agreements (morphological and molecular what they agree on | Animalia is monophyletic= metazoa sponges are most primitive : basal animals = parazoa eumetazoa is clade with true tissues most animal groups are in Bilateria Echinoderms and chordates are major deutersome groups |
| metazoa | monophyletic |
| parazoa | beside animals no true tissues |
| eumetazoa | true tissues |
| Bilateria | most animals are this |
| Deutersomes = | echinoderms and chordates |
| make blank chart and practice filling it out chart is on hawkeye | kingdom animalia, coelomates, deuterosomes |
| gastrulation figure be able to draw and put in words | |
| sessile | not moving rooted |
| planktonic | free swimming |
| jellyfish are considered | planktonic |
| cephalization | start of head CNS |
| true tissue | tissue layers are called germ layer |
| radial symmentry | diploblastic |
| triploblastic what symmetry | bilateral |
| dont have to know taxonimical names yet not for quiz but for test on friday 13th | |
| figure 32.9 | break chart down characteristics and examples |
| anus mouth formation | |
| blastula | hollow ball cells that surround a cavity called the blastocoel |
| gastrulation | embryonic tissues that will develop into adult body parts |
| gastrula | developmental stage |
| 3 key steps in animal evolution | true tissues, bilateral system, three germ layers |
| protsome clevage | spiral and determinate |
| deutersome clevage | radial and indeterminate |
| protosome coelom formation | mesoderm split and form coelom |
| deutersome coelom formation | folds of archenteron form coelom |
| fate of B protosome | mouth first fate of blastopore |
| fate of B deuterostome | anus first fate of Blastopore |
| determinate clevage | casts the developmental fate of each embryonic cell early |
| indeterminate | each cell produced by early clevage divisions retain the capacity to to develop into a new embryo |
| radial | parrallel or perpendicular |
| spiral | diagonal to the vertical axis of the embryo |
| diploblastic example | jellies and corals |
| most triploblastic animals have a | coelom |
Created by:
connar123
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