Which of the following are not types of fins?

• pelvic, pectoral, caudal

• anterior dorsal, anal, pelvic

• pectoral, posterior dorsal, caudal

• caudal, operulum, pelvic

Countershading is a type of camouflage where

• the dark color is ventral; the lighter color is dorsal

• the dark and light colors are spread randomly

• the dark color is the only color

• the dark color is dorsal; the lighter color is ventral

All fish are chordates.

• true

• false

Fish belong to the phylum

• Vertebrata

• Osteichthyes

• Eukarya

• Chordata

At one time in its life cycle, all chordates have

• ventral nerve cord, backbone, gill slits

• dorsal nerve cord, notocord, gill slits

• ventral nerve cord, ventral notocord, spiracles

• dorsal nerve cord, backbone, gill slits

A fish has _____ heart chambers.

• 1

• 2

• 3

• 4

The names of the heart chambers are

• atrium and spiracle

• ventricle and spiracle

• natrium and ventricle

• atrium and ventricle

Oxygen-rich blood in a fish flows from

• heart to body to gills

• gills to heart to body

• gills to body to heart

The blood circulation in a fish can be described as a

• single loop

• double loop

• triple loop

• inverted loop

An atrium _____ blood; a ventricle _____ blood.

• pumps; collects

• filters; pumps

• collects; filters

• collects; pumps