Tunicates (sea squirts) belong to the subphylum:
a. Chordata
b. Mammalia
c. Craniata
d. Urochordata
e. Cephalochordata - D) Tunicates belong to the
... [Show More] subphylum Urochordata
Lymphatic vessels are very similar in form and function to which of the following?
a. Arteries
b. Capillaries
c. Veins
d. Bowman's Capsules
e. Bronchioles - C) Lymphatic vessels are very similar in form and function to veins
Which of the following cell types is responsible for rapidly initiating a secondary immune response?
a. Suppressor T cells
b. Macrophages
c. T helper cells
d. Memory cells
e. Mast cells - D) Memory cells are responsible for rapidly initiating a secondary immune response
Most of the oxygen is transported through the human body in which fashion?
a. Dissolved in the blood plasma
b. Dissolved in white blood cell cytoplasm
c. Bound to neon atoms attached to hemoglobin
d. As bicarbonate
e. Bound to the iron atom in hemoglobin - E) Most of the oxygen is transported through the human body bound to the iron atom in the hemoglobin
Which of the following groups is/are gnathostomes?
a. Bony fish
b. Lampreys
c. Sea squirts
d. Hagfish
e. Two of the above answers are correct - A) Bony fish are gnathostomes
The Chordate group that has a rasping tongue with teeth, cartilaginous skeleton, lacks jaws and vertebrae, retains the notochord, no paired appendages, and one pair of semicircular canal
a. Lancelets
b. Chondrichthyes
c. Hagfish
d. Bony fish
e. Lampreys - C) Chordate group that has rasping tongue with teeth, cartilaginous skeleton, lacks jaws and vertebrae, retains the notochord, no paired appendages, and one pair of semicircular canal are the hagfish
A new species of vertebrate was discovered. It has a 3-chambered heart, lungs, scales made of keratin, and limbs with five toes. Its entire life cycle occurs on land. A knowledgeable biologist would also predict that it had:
a. Fur
b. Cartilaginous endoskeleton
c. An amniotic egg
d. Tunic of cellulose
e. Fins and an operculum - C) 3-chambered heart, lungs, scaled made of keratin, limbs with 5 toes: Amniotic egg
The innermost extraembryonic membrane that surrounds the embryo
a. Allantois
b. Chorion
c. Amnion
d. Yolk sac - C) The amnion is the innermost extraembryonic membrane surrounding the embryo
Bacteria in the large intestine produce which of the following materials (which is absorbed by the large intestine)?
a. Vitamin A
b. Iron
c. Vitamin C
d. Nitrates
e. Vitamin K - E) Vitamin K is produced by bacteria in the large intestine
The interstitial fluid of humans has essentially the same composition of water and dissolved materials as
a. Blood
b. Bile
c. Intracellular fluid
d. Lymph
e. Phlegm - D) Interstitial fluid of humans has essentially the same composition of water and dissolved materials as lymph [Show Less]