We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byDylan Johnston
Modified over 2 years ago
A General Look
There are about 25,000 different species of fishes. This is more than any other vertebrate group.
They come in all shapes and sizes.
The largest is the whale shark.
The abundance of fish life is a reflection of the abundance of plankton.
Fish show almost infinite variety when it comes to color. They have special skin cells called chromatophores.
These chromatophores can expand or contract to change the color of the fish.
There are also many patterns. Many open water fish like this tuna show countershading.
They tend to be dark on top and light on the bottom. Why do you think they have this pattern?
Some fishes have a coloration pattern that allows them to blend in to their environment.
Some fish have very colorful warning coloration. This is often used if they are poisonous, dangerous, or taste bad.
Many mid-depth fish are often red while lots of the deep water fish are black and may have luminescent organs.
Movement In Fishes Propulsion in most fishes is from the caudal fin and flexing the hind part of the body.
The faster swimming fish also have a teardrop or fusiform body shape to help them move through the water.
The dorsal and anal fins serve primarily as rudders.
The pectoral and pelvic fins are used for balancing, turning, braking and going backwards.
Body Shapes There are four basic body shapes with all kinds of variation in between.
Compressed Compressed fish look like they have been smashed on both sides.
Depressed Depressed fish look like they were smashed from the top and bottom.
Terete or Round These fishes are round like a pipe. Most eels are in this group.
Fusiform or Teardrop This one we already mentioned. Typical of the faster fish species.
Scales Actually, not all fish have scales. Lampreys and freshwater catfish lack scales. The American eel actually has small scales. There are four basic types that well look at today.
Sharks and their relatives have placoid scales. They feel a lot like sand paper.
Gar fish, reedfishes, and parts of sturgeons have a scale type known as rhombic or ganoid.
Ganoine gives them the pearly look.
Most bony fishes have one or both of the next two types. The bony –ridge scales: cycloid and ctenoid.
Cycloid are round and lack a comb like edge.
Ctenoid have the comb like edge. Scales can be over 7 inches!
Circulation The heart of a fish is simple when compared to our heart. They have a two cambered heart that follows a heart-gills- body-heart path.
Oxygen is then taken out of the water by the gills
Fish. What are Fish? Fish are aquatic vertebrates (animals with backbones) with fins for appendages. They "breathe" by means of gills. Fish make up the.
Of. and a to the in is you that it at be.
High Frequency Words List A Group 1. the of and.
The. of and a to in is you that it he for.
The. of and a to in is you that it he was.
By Brayan Silva Ortega. There are five different groups of animals with vertebrates. These classification are: Mammals Fish Birds Amphibians Reptiles.
EVERYTHING YOU ALWAYS WANTED TO KNOW ABOUT:. WHAT MAIN CHARACTERISTIC IS SHARED BY ALL VERTEBRATES?
Means fish with bony skeletons There are over 20,000 species of bony fish.
MAIN IDEA: What are the main external and internal anatomical features of fish ?
What is a Fish? Characteristics, features, examples of the animals with fins, gills, and scales assets/Fish.jpg.
Can you see?. I like him. When will we go? All or some.
Skates & Rays Skates and rays are both cartilaginous fishes that are related to the sharks.
High-Frequency Phrases First 100 Words. The people.
Oral Reading Fluency First 100 Most Used Phrases.
Christopher J. and Blue C. There are five different groups of animals with vertebrates Mammals Mammals Reptiles Reptiles Fish Fish Amphibians Amphibians.
Lets build fluency! The people By the water You and I.
Classification. While there is a lot of variation between organisms, they also have a lot of features in common. On the next slide is an activity comparing.
Dolch Words the of and to a in that is was.
10. PHYLUM CHORDATA Dorsal Notochord-long rod that supports the body-becomes the vertebrae in most. Dorsal Notochord-long rod that supports the body-becomes.
The people Look for some people. Write it down. By the water So there you are. Who will make it? You and I A long time What will they do?
Classification is the act of distributing things into classes or categories of the same type.
A. as is a couldn’t does could has wouldn’t.
Fish The most diverse and successful vertebrates.
Cells and Microorganisms 1. cell Did you know that you and oak trees are both made of cells? A cell is a tiny part of a living thing. Your cells and the.
© OUP: To be used solely in purchasers school or college 7A Cells Signs of life Building blocks of life Building living things 7A Cells.
3.3.2 Mammalian heart. Applied GCE in Science Unit 3 Monitoring the activity of the human body.
All living organisms need to take substances from their environment to obtain energy, to grow and to stay healthy.
Looking At Other Digipacks/CDs Emily Batts. Pop Artists CD Covers.
© 2017 SlidePlayer.com Inc. All rights reserved.