All about Fish

Introduction

Fish

A fish is any member of a paraphyletic group of organisms that consist of all gill-bearing aquatic craniate animals that lack limbs withdigits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups. Most fish are ectothermic ("cold-blooded"), allowing their body temperatures to vary as ambient temperatures change, though some of the large active swimmers like white shark and tuna can hold a higher core temperature. Fish are abundant in most bodies of water. They can be found in nearly all aquatic environments, from high mountain streams (e.g., char and gudgeon) to theabyssal and even hadal depths of the deepest oceans (e.g., gulpers and anglerfish). With 33,100 described species, fish exhibit greater species diversity than any other group of vertebrates.

Task

 

  You need to follow the dirrectios for you to do the tasks.

  • Task 1

What distinguishes fish from the other animal classes? 

  • Task 2

Study the illustration of the anatomy of a fish.

  • Task 3

Identify the different parts of a fish.

Process

Evaluation

What are the different internal parts of a fish?

Conclusion

Fishes are animals that live and swim in the water (although you might see a fish like a mudskipper or walking catfish crawling on land), are cold-blooded (except for tunas and marlins and mako sharks that are warmer than the water), breathe using gills (usually, but lungfish and some others have lungs), have backbones (but not always of bone, such as in sharks, which are cartilage), have a scaly skin (except for eels, which are scale-less), and have various fins instead of limbs (except for a few that do actually have limbs, like lungfish and coelacanth).  So, we usually know a fish when we see one, but there are lots of exceptions to our fishy definitions.

In conclusion, fish just like other animals is very important being in this planet. Without them, other species will not be able to survive its existence. Knowing its anatomy gives us idea and information about fishes. You have now some understanding about them for you to help them to continue to survive and exixst in this world of diversified living things.

I hope you've learned something about fish and its internal parts. 

Credits

Teacher Page

This webquest is created in compliance with one of the subject requirements in EdTech. Topic discussed therein are carefully researched using the internet. Any misinformation included are not done intentionally however the writer is open for comments and suggestions to improve the page. Thank you for reading the article about fish.

Hope that you learned something.