Difference between revisions of "AY Honors/Marine Mammals/Answer Key/es"

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< AY Honors‎ | Marine MammalsAY Honors/Marine Mammals/Answer Key/es
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<!-- 6. ¿Cuál es el propósito de la grasa de ballena? -->
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Blubber is a thick layer of fat found under the skin of all cetaceans, pinnipeds and sirenians. It covers the whole body, except for the appendages, loosely attached to the muscles. It can comprise up to 50% of the body mass of some marine mammals during some points in their lives. Blubber serves several different functions, it is the primary area of fat on some mammals, and essential for '''storing energy'''. It is particularly important for species which feed and breed in different parts of the ocean. During these periods the species are operating on a fat-based metabolism.
 
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Blubber also serves as an efficient '''thermal insulator''', making it an essential for thermoregulation. It has advantages over fur (as used in Sea Otters) in this respect; fur can retain heat by holding pockets of air, but under pressure (while diving) the air pockets will be expelled. Blubber, however, does not compress under pressure. It can also aid in '''buoyancy''', and acts to streamline the body.
 
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Seals are hunted for their '''fur''', '''meat''' and '''oil'''. They are also hunted by fishermen to '''eliminate competition for fish'''. Seals sometimes take bites out of fish already caught in a fisherman's net, making the fish unfit for sale.
 
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<!-- 8. Describe why seals and dolphins can move so quickly in the water. -->
 
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The seal's flippers are enormously long, and the skin between them forms a web which is used like a paddle to propel the seal along. They have long, sturdy claws on their front flippers which they use to help them move on land, especially when they need to grip onto rocks or ice
 
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This option will almost certainly be the most rewarding for your Pathfinders, but it will also require the most work on your part to get it organized. Try to contact the aquarium before setting off on your trip so that you can make arrangements to meet with a staff member there. They are usually very willing to help you, and will be delighted to provide you with information regarding the daily feeding schedule. Note that some zoos have aquariums too, so if a zoo is more convenient than an aquarium, you might want to investigate this possibility.
 
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Much of the material for the answers presented here was taken from Wikipedia. You can start your research by reading the full articles:
 
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* [[w:Whale|Whales]]
 
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* [[w:Toothed Whale|Tooth Whales]]
 
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* [[w:Baleen Whale|Baleen Whales]]
 
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* [[w:Dolphin|Dolphins]]
 
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* [[w:Earless Seal|Earless (True) Seals]]
 
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* [[w:Eared Seal|Eared Seals]]
 
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* [[w:Manatee|Manatees]]
 
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Search Google News for marine mammals to find out about current events. http://news.google.com/news?hl=en&ned=us&q=marine+mammal&btnG=Search+News
 
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You can also search http://news.google.com for a particular marine mammal (such as whales, seals, dolphins, or manatees).
 
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===Note===
 
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This Honor and the [[AY Honors/Cetaceans|Cetaceans]] Honor have considerable overlap. Consider working on them together.
 
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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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Much of the material here as adapted from numerous Wikipedia articles.
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Revision as of 04:20, 18 April 2021

Other languages:
English • ‎español
Mamíferos marinos

Nivel de destreza

2

Año

1991

Version

25.11.2024

Autoridad de aprobación

Asociación General

Marine Mammals AY Honor.png
Mamíferos marinos
Estudio de la naturaleza
Nivel de destreza
123
Autoridad de aprobación
Asociación General
Año de introducción
1991
Vea también
Maestría de Zoología


1

Ser capaz de identificar tres de cada una de las siguientes especies y saber dónde se encuentra cada una. Conocer al menos uno de cada grupo por el nombre científico:



1a

Ballenas dentadas


Adventist Youth Honors Answer Book/Species Account/Delphinapterus leucas/es Adventist Youth Honors Answer Book/Species Account/Monodon monoceros/es Adventist Youth Honors Answer Book/Species Account/Physeter macrocephalus/es Adventist Youth Honors Answer Book/Species Account/Kogia breviceps/es Adventist Youth Honors Answer Book/Species Account/Berardius/es Adventist Youth Honors Answer Book/Species Account/Hyperoodon/es Adventist Youth Honors Answer Book/Species Account/Ziphius cavirostris/es


1b

Ballenas barbadas


Adventist Youth Honors Answer Book/Species Account/Balaenoptera musculus/es Adventist Youth Honors Answer Book/Species Account/Balaena mysticetus/es Adventist Youth Honors Answer Book/Species Account/Megaptera novaeangliae/es Adventist Youth Honors Answer Book/Species Account/Eschrichtius robustus/esAdventist Youth Honors Answer Book/Species Account/Caperea marginata/es


1c

Focas verdaderas


Adventist Youth Honors Answer Book/Species Account/Monachus schauinslandi/es Adventist Youth Honors Answer Book/Species Account/Mirounga/es Adventist Youth Honors Answer Book/Species Account/Hydrurga leptonyx/es Adventist Youth Honors Answer Book/Species Account/Halichoerus grypus/es



1d

Focas caminantes



1e

Delfines/Marsopas


Adventist Youth Honors Answer Book/Species Account/Orcinus orca/es Adventist Youth Honors Answer Book/Species Account/Tursiops truncatus/es Adventist Youth Honors Answer Book/Species Account/Delphinus delphis/es Adventist Youth Honors Answer Book/Species Account/Neophocaena phocaenoides/es Adventist Youth Honors Answer Book/Species Account/Phocoena phocaena/es


1f

Morsas


Adventist Youth Honors Answer Book/Species Account/Odobenus rosmarus/es

1g

Nutrias


Adventist Youth Honors Answer Book/Species Account/Enhydra lutris/es


1h

Manatíes


Adventist Youth Honors Answer Book/Species Account/Trichechus inunguis/es Adventist Youth Honors Answer Book/Species Account/Trichechus manatus/es Adventist Youth Honors Answer Book/Species Account/Trichechus senegalensis/es



2

Conocer y localizar la historia de cómo Dios utilizó una ballena en tiempos bíblicos.



3

¿Cuál es el mamífero más grande en el mar?



4

Explicar las siguientes palabras:


4a

Salto (de las ballenas)



4b

Ecolocalización



4c

Asomarse para espiar (spyhop)



4d

Barbas de ballena
Baleen

Baleen makes up baleen plates, which are arranged in two parallel rows that look like combs of thick hair; they are attached to the upper jaws of baleen whales. Whales use these combs for filter feeding. Baleen whales scoop vast amounts of water into their mouths, and then push the water back out their mouths through the baleen plates. The baleen plates prevent fish and plankton from flowing out of their mouths. Whales are the only vertebrate group to use this method of feeding in great abundance (flamingos and crabeater seals use similar methods, but do not have baleen), and it has allowed them to grow to immense sizes.


4e

Grupo o manada (de ballenas)



4f

Harén (grupo social de animales)



4g

Plancton




5

Dibujar una cadena alimenticia de dos mamíferos marinos.



6

¿Cuál es el propósito de la grasa de ballena?



7

Conocer dos razones por qué las focas son cazadas.



8

Describir por qué las focas y los delfines pueden moverse con tana rapidez en el agua.



9

Realizar una de las siguientes actividades:


9a

Tomar un viaje a un acuario. Aprender más sobre el programa de alimentación diaria de un mamífero marino y observar un día de alimentación.


Template:AY Honors/Zoo Visit/es


9b

Escribir un informe de 500 palabras sobre los mamíferos marinos. Incluir imágenes.



9c

Escribir un informe de 500 palabras sobre los actuales acontecimientos relacionados con los mamíferos marinos y su entorno y la forma en que podrían estar en peligro.





Referencias

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