Difference between revisions of "AY Honors/Porifera and Cnidaria/Answer Key/es"

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< AY Honors‎ | Porifera and CnidariaAY Honors/Porifera and Cnidaria/Answer Key/es
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Sponges are multicellular animals with an outer and inner membrane (the Ectoderm and Endoderm respectively), with a non-cellular jelly-like matrix between these cellular layers.
 
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Sponges have specialized Chanocytes, cells with a flagellum to create a current to draw water over special hair-like projections in a ring around the flagellum.
 
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Sponges gain structural strength from spicules, which in some form a type of skeleton. Spicules can be made of protein fibers, silica (glass) or calcium carbonate.
 
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Sponges are sessile, they do not move (though certain embryonic stages are capable of movement).
 
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Sponges do not necessarily have any particular symmetry to their body form.
 
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Use a picture of a Jellyfish as a guide, or try to draw from a live jellyfish at an aquarium or zoo.
 
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Coral reefs serve as nurseries and living quarters for numerous difference species of marine animals, and thus play a very important role in ecological webs. They also provide shelter against storms to some coastal areas, and are a vital part of tourism in many tropical countries.
 
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The Great Barrier Reef, off the coast of Queensland, Australia, is considered the largest coral reef in the world, at more than 1400 miles long, and covers approximately half the total land area of the state of Texas. Other large reefs include the Red Sea coral reef, at more than 1100 miles long, and the Florida Keys reef, at more than 200 miles long.
 
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==Referencias==
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==References==
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[[Category:Adventist Youth Honors Answer Book/es]]
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[[Category:Adventist Youth Honors Answer Book|{{SUBPAGENAME}}]]
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Revision as of 12:40, 19 April 2021

Other languages:
English • ‎español • ‎português do Brasil
Poríferos y cnidarios

Nivel de destreza

2

Año

2012

Version

22.06.2025

Autoridad de aprobación

División Sudamericana

Porifera and Cnidarians AY Honor.png
Poríferos y cnidarios
Estudio de la naturaleza
Nivel de destreza
123
Autoridad de aprobación
División Sudamericana
Año de introducción
2012


1

¿Por qué las esponjas son considerados animales?



2

¿Por qué son considerados filtros?



3

Citar por lo menos dos características de las esponjas.


Sponge TMM 0899.jpg GlassSponge TMM 0898.jpg WewokellidSponge TMM 0787.jpg Sponge TMM 0784.jpg


4

¿Qué significa el nombre cnidario? ¿Qué animales forman parte de este grupo?



5

¿Qué son los ctenóforos? ¿Qué los diferencia de los cnidarios?


Ctenophore still.jpg


6

¿Qué cuidados se debe tomar al encontrar una aguaviva (medusa)?


7

¿En qué ambiente viven las esponjas? ¿Y los cnidarios?


8

¿Qué se puede hacer si quema una aguaviva?


9

Dibujar una aguaviva e indicar sus partes principales.

JellyfishAnatomy.jpg


10

¿Cuál es la importancia de los arrecifes de corales?


11

¿Cuál es el mayor arrecife de coral del mundo?



Referencias

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