Question
Which of the following illustrates the effects of alcohol on the brain?
a. it inhibits acetylcholine output impairing the muscular system
b. stimulates endorphins and GABA creating a brief reduction in anxiety followed by depression
c. its toxins damage tissue in the liver and brain
d. all of the above
1 points
Question 27
The membranes that protect the brain are called:
a. cerebrospinal sheaths
b. meninges
c. ventricles
d. myelin sheaths
1 points
Question 28
Which of the following most likely indicates a bacterial infection?
a. acidic urine
b. alkaline urine
c. protein in urine
d. luteinizing hormone in urine
e. sugar in urine
1 points
Question 29
Which cells directly destroy body cells infected by viral or fungal parasites?
a. Helper T-cells
b. Suppressor T-cells
c. Cytotoxic T-cells
d. Memory B-cells
e. B-cells
1 points
Question 30
Which is usually a carnivore?
a. chicken
b. cow
c. rabbit
d. coyote
e. squirrel
1 points
Question 31
The ecological footprint is a measure of
a. the amount of time required for a country to move from the pre-industrial to the post-industrial phase of demographic transition.
b. the number of acres squandered per person in unsustainable business and agricultural practices.
c. the area required per person to grow cattle to feed the population in a given country.
d. the amount of the Earth’s surface required to support a particular level of development and consumption in a sustainable fashion.
1 points
Question 32
Which of the following are functions of skeletal muscle?
a. produce movement
b. maintain posture
c. both a and b
d. None of the above
1 points
Question 33
Body fluids conduct an electrical charge, and electrodes that monitor activity of the heart give a printed record called a:
a. Electrocardiogram
b. Electrocardioscan
c. Cardiocrypogram
d. Echocardiogram
1 points
Question 34
Which of the following does not describe yellow marrow?
a. Yellow marrow is composed primarily of fat tissue
b. Yellow marrow is found in most cavities of long bones in the adult
c. Yellow marrow is a reserve tissue, producing blood cells only under conditions of severe blood loss
d. Yellow marrow is the major site for blood cell formation
1 points
Question 35
The duodenum receives secretions from all of these except the:
