BIO 109 Lab Exam 2(Final) Exam Questions
with Correct Answers
You should begin the dissection of the starfish with its aboral surface down and oral surface up.
True
False False
In starfish, what is the correct order of water flow, starting with the madreporite?
madreporite → stone canal → radial canal → ring canal → tube feet
madreporite → stone canal → ring canal → radial canal → tube feet
madreporite → ring canal → radial canal → stone canal → tube feet
madreporite → tube feet → stone canal → radial canal → ring canal madreporite → stone
canal → ring canal → radial canal → tube feet
Both crayfish and starfish have a two-chambered stomach.
True
False True
,Crayfish have an endoskeleton and starfish have an exoskeleton.
True
False False
A single layer of flat epithelial cells is called
simple squamous.
simple cuboidal.
simple cuboidal.
stratified squamous. simple squamous.
The urogenital opening of male fetal pigs is caudal to the umbilical cord.
True
False True
Pepsinogen is produced in the
pancreas.
liver.
stomach.
, colon. stomach.
The beginning of the small intestine, just off the stomach, is called the
duodenum.
jejunum.
colon.
cecum. duodenum.
The sac under the liver that holds bile is called the
duodenum.
jejunum.
colon.
gallbladder. gallbladder.
The right atrium contains oxygenated blood.
True
False False
with Correct Answers
You should begin the dissection of the starfish with its aboral surface down and oral surface up.
True
False False
In starfish, what is the correct order of water flow, starting with the madreporite?
madreporite → stone canal → radial canal → ring canal → tube feet
madreporite → stone canal → ring canal → radial canal → tube feet
madreporite → ring canal → radial canal → stone canal → tube feet
madreporite → tube feet → stone canal → radial canal → ring canal madreporite → stone
canal → ring canal → radial canal → tube feet
Both crayfish and starfish have a two-chambered stomach.
True
False True
,Crayfish have an endoskeleton and starfish have an exoskeleton.
True
False False
A single layer of flat epithelial cells is called
simple squamous.
simple cuboidal.
simple cuboidal.
stratified squamous. simple squamous.
The urogenital opening of male fetal pigs is caudal to the umbilical cord.
True
False True
Pepsinogen is produced in the
pancreas.
liver.
stomach.
, colon. stomach.
The beginning of the small intestine, just off the stomach, is called the
duodenum.
jejunum.
colon.
cecum. duodenum.
The sac under the liver that holds bile is called the
duodenum.
jejunum.
colon.
gallbladder. gallbladder.
The right atrium contains oxygenated blood.
True
False False
