Osteichthyes

High school (ages 12+)
Animals & Nature

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/osteichthyes

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific name?Osteichthyes. This taxonomic group is often treated as a superclass or division
2. What makes bony fish different from other fish?Bony fish have a skeleton made of true bone instead of cartilage. This gives them strong support and lets them grow bigger and move more easily.
3. How do bony fish stay at the right depth in the water?They have a gas-filled swim bladder that helps them float and sink just right, so they can swim without using too much energy.

Endoskeleton: An internal framework of bones that provides support, protection, and allows for muscle attachment.
Swim Bladder: A gas-filled internal organ that allows bony fish to control their buoyancy and maintain position in the water column.
Adaptive Radiation: The rapid diversification of a lineage into new forms, filling ecological niches that were previously unoccupied.
Trophic Roles: The position an organism occupies in a food web, indicating what it eats and what eats it.