Difference between revisions of "AY Honors/Fishes/Answer Key/fr"

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During the time that aquarium plants are exposed to light, carbon dioxide is absorbed and oxygen is expelled. The gases enter the plant mainly through the leaves. The carbon dioxide and water are chemically combined with the chlorophyll in the plant to produce simple sugars. The sugars are converted to starch and oxygen is produced as the by-product. The light in your tank is most important with respect to the chlorophyll. The chlorophyll is what absorbs the light to create the process of photosynthesis. The aquarium plant naturally absorbs more nutrients through the roots during this time.
 
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Respiration is the opposite of photosynthesis. When the lights are out, the photosynthesis process ceases but the respiration continues. The aquarium plant will use oxygen to break down food substances, which is released as energy in the form of heat. Carbon dioxide is produced and expelled as a result of this process.
 
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So, when the lights are on the plants absorb carbon dioxide and expel oxygen. When the lights are out the aquarium plants absorb oxygen and expel carbon dioxide.
 
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Overfeeding is one of the major causes of fish loss. Overfeeding promotes fish waste (ammonia) to build up to a harmful level. It is best to feed your betta only enough food that it can eat in five minutes. If food is seen sitting on the bottom of the aquarium or bowl, the fish have been overfed.
 
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Rapid changes in water temperatures stress your fish. when fish are stressed they are more susceptible to disease and sickness.
 
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Fish need plants in the wild for shelter, food, filtration, and oxygen. In an aquarium you supply their main source of food
 
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==Notes==
 
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When to use ''fish'' or ''fishes''. Use ''fish'' when talking about a school of the same species. Use ''fishes'' when talking about schools of different species. Any time you are talking about more than one species, use ''fishes''. <ref>http://www.amonline.net.au/fishes/what/fish.htm</ref>
 
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==Références==
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*[[w:List of freshwater aquarium fish species|List of freshwater aquarium fish species]]
 
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Latest revision as of 03:40, 20 July 2022

Other languages:
English • ‎español • ‎français
Poissons

Niveau d'aptitude

2

An

1945

Version

27.11.2024

Autorité approbatrice

Conférence Générale

Fishes AY Honor.png
Poissons
Nature
Niveau d'aptitude
123
Autorité approbatrice
Conférence Générale
Année d'introduction
1945
Voir également
Master Nature
Master Zoologie


1

Nommer dix familles de poissons.



2

Nommer et identifier dix poissons tropicaux (y compris les

poissons d’aquarium).

a. Expliquer leur façon de frayer.
b. Connaître le pays dans lequel ils vivent.



3

Nommer dix poissons du pays. Connaître la manière dont ils se nourrissent et dont ils se reproduisent. Nommer cinq poissons de mer et connaître leur manière de se nourrir et de se reproduire.



4

A quoi servent:



4a

Les nageoires dorsales



4b

Les nageoires pectorales



4c

Les nageoires pelviennes



4d

Les nageoires anales



4e

Les nageoires caudales



4f



4g

Les opercules



4h



4i

La vessie natatoire



4j

Les branchies




5

Décrire la manière de soigner et de nourrir les poissons:
a. Des zones tropicales
b. Des zones tempérées



6

Construire un aquarium d'environ vingt litres avec des plantes et des poissons tropicaux ou du pays, et l’entretenir pendant au moins six mois.



7

Noter les effets produits sur les poissons d’aquarium lorsque:


7a

Il y a trop de lumière



7b

Il n’y a pas assez de lumière



7c

L’on donne trop de nourriture



7d

La température de l’eau baisse




7e

Il y a trop de plantes et trop de poissons






Références

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