which of the following structures is primaly responsible for reabsorbing water from the alimentary canal?
a-small instestine
b-nephron
c-glomerulus
d-colon
e-cecum
2-which one of the following statement is NOT true about mammalian circulatory systems?
a-the pulmonary circuit carries blood between the heart and the lungs
b-the systemic circuit carries blood between the heart and the rest of the body
c-mammals have two atria and two ventricles in their hearts
d-a mammal uses about ten times as much oxygen as a lizard of the same size
e-the left size of a mammal's heart sends blood to the lungs
3-a transport system in which blood bathes the organ directly is termed
a-an open circulatory system
b-a closed circulatory system
c-a cardiovascular system
d-a gastrovascular system
e-a gastrobascular cavity system
4-which of the following carry blood away from the heart?
a-benules
b-veins
c-arteries
d-capillaries
e-atria
5-in the mammalian heart, the sinotrial (sa) node is responsible for which of the following functions?
a-delaying the nerve impulse to the walls of the ventricle
b-controlling the atrioventricular valves
c-controlling the semilunar valves
d-setting the rate and timing of cardiac muscle contraction
e-monitoring stroke volume
6-fluid and proteins lost from the capillaries are returned to the blood via
a-the nervous system
b-the arteriole system
c-the lymphatic system
d-capillary beds
e-the hemolymp system
7-all of the following are components of blood EXCEPT
a-red blood cells
b-white blood cells
c-platelets
d-leukocytes
e-lymph
8-red blood cells are produced in which of the following structures
a-the heart
b-the blood vessels
c-bones
d-muscles
e-masses of the other blood cells
9-which of these is the organ of respiration for a spider?
a-lings
b-the skin
c-tracheal system
d-malpighian tubules
e-book lungs
10-in blood, carbon dioxide is primaly transported in what way?
a-by hemoglobin
b-by hemocyanin
c-as carbon monoxide
d-as bicarbonate
e-in erythrocytes
11-all of the following are the first line barriers against infectious agents EXCEPT
a-skin
b-nasal membranes
c-saliva
d-mucous secretion
e-phagocytes
12-an immune response to a specific antigen generates the production of which type of cell that launches an attack the next time that same antigen infects the body?
a-effector cells
b-memory cells
c-t cells
d-b cells
e-antibodies
13-all of the following are ways by which organism exchange heat EXCEPT
a-transference
b-conduction
c-convextin
d-radiation
e-evaporation
14-which of the following animals is most likely an ectoderm?
a-human
b-snake
c-bird
d-monkey
e-dolphin
15-the malpighian tubules are the organs that constitute the excretory system of which of the following animals?
a-planaria
b-humans
c-fishes
d-insects
e-anneclids
16-the ball of capilliaries that is associated with the nephron and associated with filtration in the kidney is
a-the bowman's capsules
b-the loop of henle
c-the proximal
d-the glomerulus
e-the distal tubule
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