Qhov sib txawv tseem ceeb ntawm daim txhuam cev thiab hydra yog cov sponges yog cov tsiaj qub qub uas yog cov tsiaj txhu ntawm phylum Porifera uas qhia txog qib cellular lub koom haum thaum hydra yog ib tug tsiaj multicellular uas yog phylum Coelenterate uas qhia cov ntaub so ntswg-theem lub koom haum.
Kingdom Animalia yog lub nceeg vaj loj tshaj plaws uas muaj ntau cov tsiaj eukaryotic. Tsiaj txhu tuaj yeem muab faib ua phyla loj xws li Porifera, Coelenterata, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata thiab Chordata. Sponges yog cov tswv cuab ntawm phylum Porifera. Lawv yog cov tsiaj uas yooj yim multicellular uas qhia txog qib cellular koom haum. Lawv tsis muaj ntaub so ntswg. Hydra yog ib tug tswv cuab ntawm phylum Coelenterata uas qhia cov ntaub so ntswg-theem lub koom haum.
Daim txhuam cev yog dab tsi?
Sponges yog cov tsiaj qub qub ntawm lub nceeg vaj Porifera. Lawv yog cov invertebrates uas muaj lub koom haum qib cellular. Lawv qhia qhov sib txawv me me thiab tsis muaj cov ntaub so ntswg tiag. Tsis tas li ntawd, lawv tsis muaj lub cev sab hauv. Cov sponges tsis yog-motile thiab feem ntau pom muaj txuas rau ntawm qhov chaw. Lawv yog cov kab mob marine. Tsis tas li ntawd, lawv yog cov kab mob asymmetrical. Muaj plaub chav sib txawv ntawm cov sponges li Calcarea, Demospongiae, Scleropongiae thiab Hexactinellida.
Daim duab 01: Daim txhuam cev
Cov kab mob no muaj lub hauv paus kwj dej thiab dej nkag los ntawm ib sab thiab tawm ntawm sab nraud. Lawv tau txais cov as-ham thiab oxygen los ntawm cov dej ntws. Yog li ntawd, lawv yog lim feeders. Lawv noj me me, ntab cov organic thiab plankton los ntawm cov dej ntws. Tsis tas li ntawd, kev tshem tawm pov tseg kuj tshwm sim los ntawm cov dej ntws hauv daim txhuam cev.
Sponges muaj xim sib txawv thiab cov duab. Lawv tuaj yeem tsim kev sib deev (los ntawm kev tsim ntawm gametes) thiab asexually (los ntawm kev tawg). Qhov tseem ceeb tshaj plaws, feem ntau cov sponges yog hermaphrodites, muaj ob qho tib si txiv neej thiab poj niam kev yug me nyuam.
YHydra yog dab tsi?
Hydra yog ib hom tsiaj ntawm ntau cov tsiaj dej tsis qab los ntawm phylum Coelenterata. Lawv nyob rau hauv chav kawm hydrozoa. Hydra tseem hu ua polyp vim nws lub zog tshwj xeeb ntawm kev rov tsim dua tshiab. Hydra yog ib yam tsiaj uas tsis muaj zog uas feem ntau pom muaj nyob rau ntawm qhov chaw ruaj khov los yog cov nroj tsuag submerged. Lub cev ntawm hydra yog cylindrical / tubular nyob rau hauv cov duab thiab radially symmetrical.
Daim duab 02: Hydra
YHydra yog carnivorous. Nws noj cov kab me me, kab larvae thiab me crustaceans. Ntxiv mus, hydra reproduces kev sib deev thiab asexually. Budding yog hom asexual ntawm kev yug me nyuam thaum kev loj hlob ntawm cov qauv ib ntus hu ua gonads tshwm sim thaum muaj kev sib deev. Feem ntau hom hydra yog dioecious thaum qee hom yog monoecious lossis hermaphrodite.
Dab tsi zoo sib xws ntawm daim txhuam cev thiab Hydra?
- Sponge and hydra belong to Kingdom Animalia.
- Lawv yog invertebrates.
- Tsis tas li ntawd, lawv yog cov dej hauv dej, ntau cov kab mob.
- Lawv rov tsim dua kev sib deev thiab asexually.
- Ob daim sponges thiab hydra yog sessile thiab tseem txuas nrog rau ib yam khoom.
Dab tsi ntawm daim txhuam cev thiab Hydra yog dab tsi?
Sponge yog cov tsiaj qub qub uas muaj nyob hauv phylum Porifera thaum hydra yog cov tsiaj dej tshiab uas muaj nyob rau phylum cnidaria. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm daim txhuam cev thiab hydra. Tsis tas li ntawd, daim txhuam cev qhia tau hais tias cellular-theem lub koom haum thaum hydra qhia cov ntaub so ntswg-theem lub koom haum.
Ntxiv mus, daim txhuam cev feem ntau yog asymmetrical, thaum hydra yog radially symmetrical. Tsis tas li ntawd, feem ntau cov sponges yog cov tsiaj hauv hiav txwv, thaum ob peb hom yog cov kab mob dej tshiab. Ntawm qhov tod tes, hydra yog cov kab mob dej tshiab. Tsis tas li ntawd, lwm qhov sib txawv ntawm daim txhuam cev thiab hydra yog cov khoom noj khoom haus. Sponges noj me me, ntab cov organic thiab plankton los ntawm cov dej ntws. Nyob rau hauv sib piv, hydra yog carnivorous. Nws pub rau cov kab me me, kab larvae thiab me crustaceans.
Koj tuaj yeem pom cov ntsiab lus ntxiv los ntawm cov duab hauv qab no ntawm qhov sib txawv ntawm daim txhuam cev thiab hydra.
Summary – Sponge vs Hydra
Sponge thiab hydra yog ob hom tsiaj hauv dej uas yog multicellular eukaryotes. Sponges yog cov tsiaj thawj zaug uas muaj lub koom haum cellular. Nyob rau hauv sib piv, hydra yog ib tug tsiaj uas muaj cov ntaub so ntswg-theem lub koom haum. Ntxiv mus, daim txhuam cev belongs rau phylum Porifera thaum hydra belongs rau phylum cnidaria. Tsis tas li ntawd, sponges yog asymmetrical thaum hydra yog radially symmetrical. Yog li, qhov no qhia txog qhov sib txawv ntawm daim txhuam cev thiab hydra.
