Chapter 28.1, Problem 1NV

Summary Introduction

To fill:

The correct term in given blanks.

Answer to Problem 1NV

The given blank can be filled as follows:

Blank	Term
1	Lateral line system
2	Spawning
3	Ventricles
4	Neural crest
5	Fin
6	Scale
7	Swim bladder
8	Cartilage
9	Operculum
10	Nephron
11	Atrium

Explanation of Solution

Lateral line system in fishes is responsible for balancing the fishes in the water and is also responsible directing movement and upright positions.

Spawning is defined as fertilization that takes place outside the body and the gametes are released in the body and fertilization also takes place there.

The ventricles are the chambers that pumps the blood outside the body.

Neural crest as group of cells that develop nerve cord and contribute to development of other sensory features.

A fin is a paddle shaped structures for propulsion, balance, and swimming.

Scale is a numerous flat structure covering the body of the fish externally.

Swim bladder is a gas filled chamber that allow the sensing of death and control the depth.

Operculum is aa structure that covers the gills and protect that from wearing and tearing.

Nephrons are the unit of the kidney and helps in filtration of nitrogenous waste.

Atrium is the chamber of heart that receive blood from the body.