these animals are found in ______, _______ and __________

(a)  

approximately (a)   species have been described under phylum annelida

true segmentation

(a)  

body type

(a)  

body is divided into ______ that are separated by ______

(a)  

gas exchange through the ______ so they have to be kept ______

(a)  

body wall is richly supplied with (a)   to absorb and transport oxygen

body cavity filled with (a)   which helps move food and waste around

most annelids have a (a)   system

connected by carpillary network

(a)  

sends blood anteriorly

(a)  

send blood posteriorly

(a)  

3 class of annelids

(a)  

class polychaeta composed of all marine annelids like ________ and ________

(a)  

class oligochaeta

includes

(a)  

class hirudinae includes all

(a)  

free swimming polychaeta are

(a)  

have appendages growing from each of the annuli called (a)  

the setae of polychaeta are longer and are called

(a)  

example of marine species that do not have padd-like appendages

(a)  

example of polychaeta

(a)  

class oligochaeta

is non segmented section of the body, looks like a band-aid

(a)  

example of class oligochaeta

(a)  

class hirudinae includes all

(a)