chapter 25!

Question 1

tube that begins at the mouth and ends at the anus

Answer 1

digestive track

Question 2

stomach chamber in cows and related animals in which symbiotic bacteria digest cellulose

Answer 2

rumen

Question 3

feathery structure specialized for the exchange of gases with water

Answer 3

gill

Question 4

respiratory organ; place where gases are exchanged between the blood and inhaled air

Answer 4

lung

Question 5

one of many tiny air sacs at the end of a bronchiole in the lungs that provide surface area for gas exchange to occur

Answer 5

alveolus

Question 6

hollow muscular organ that pumps blood throughout the body

Answer 6

heart

Question 7

type of circulatory system in which blood is only partially contained within a system of blood vessels as it travels through the body

Answer 7

open circulatory system

Question 8

type of circulatory system in which blood circulates entirely within blood vessels that extend throughout the body

Answer 8

closed circulatory system

Question 9

upper chamber of the heart that receives blood from the rest of the body

Answer 9

atrium

Question 10

lower chamber of the heart that pumps blood out of heart to the rest of the body

Answer 10

ventricle

Question 11

process by which metabolic wastes are eliminated from the body

Answer 11

excretion

Question 12

an organ of excretion that separates wastes and excess water from the blood

Answer 12

kidney

Question 12

excretory structure of an annelid that filters body fluid

Answer 12

nephridium

Question 13

structure in most terrestrial arthropods that concentrates the uric acid and adds it to digestive wastes

Answer 13

malpighian tubule