Please help me on the following questions. I appreciate it
The integument of aquatic vertebrates is adapted:
a) to generate its own body heat.
b) to retard the movement of water into their bodies.
c) to reduce water loss.
d) to manufacture vitamin D in the presence of sunlight.
Which of the following would be considered a disorder of the exocrine gland system?
a) Diabetes.
b) Failure of uterus to contract.
c) Dry skin.
d) Hypothyroidism.
e) Grave’s disease.
A sedentary person takes in food in excess of blood glucose and glycogen reserves. It is very likely that any extra glucose taken in the diet will have the following fate:
a) It is burned as useless energy
b) It is stored as fat
c) It makes the person hyperactive
d) It is passed out through the kidney
All of the following organisms are likely to be wiped out by a new disease or climate change EXCEPT for:
a) organisms that have been selectively bred for specific characteristics such as hardiness.
b) organisms that have been cultivated to the exclusion of all other varieties or species of the same type.
c) organisms that are already endangered.
d) organisms with high genetic diversity.
On which days of a woman’s 28 day cycle is the lining of the uterus the thickest?
a) days 2-6
b) days 12-14
c) days 16-20
d) days 22-26
The stimulation of uterine contractions by oxytocin is an example of:
a) Negative feedback
b) Positive feedback
c) Antagonism
d) Synergism
e) two of the above
If world population distribution continues as is until 2050, all of the following will be true EXCEPT:
a) Asia will have the majority of the world’s population.
b) the United States will have more people than Africa.
c) Africa will have nearly 20% of the population.
d) Europe and North America’s population will drop to less than 11%.
Which of the following statements IS NOT true about tropical rainforests?
a) The rainforest floor is thick and lush with vegetation.
b) The top layer of the forest is called the canopy.
c) Rainforests occur in regions of high temperature and rainfall.
d) The soil of the rainforest is very poor.
The purpose of vaccination is to:
a) elicit an antibody response while causing a mild form of the disease.
b) elicit an immune response without causing the disease.
c) prime the immune system to respond to any type of infection.
d) allow passive immunity while causing a mild form of the disease.
Jeanne has just recovered from a cold. Likely, if she encountered the same cold virus on a future occasion she could more promptly resist it because of what immune system component?
a) Macrophages.
b) Lymphokine.
c) Plasma cells.
d) Memory cells.
e) Cytotoxic T cells.
The vagus nerve is a cranial nerve that carries:
a) only sensory fibers.
b) only motor nerve fibers.
c) both sensory and motor nerve fibers.
d) only specialized sensory fibers from the eye.
A desert rodent’s loop of Henle is:
a) much longer than a human one in order to concentrate the urine.
b) much shorter than a human one in order to concentrate the urine.
c) the same as a human one.
d) absent.
The name of the structure within the inner ear that determines whether you are upside down or right side up is called the:
a) organ of Corti.
b) oval window.
c) tympanic canal.
d) vestibule.
e) tympanic membrane.
What visual disadvantage does a lizard face with one eye on each side of the head and no overlap in their fields of view?
a) Lack of bipolar cells.
b) Lack of cone cells.
c) Lack of rod cells.
d) Lack of a fovea.
e) Lack of depth perception.
Which of the following is a density independent environmental condition?
a. parasitism
b. predation
c. competition for a food source
d. a tornado
A graph of exponential population growth looks similar to the letter:
a. U
b. L
c. Z
d. J
When competition occurs between Paramecium aurelia and Paramecium caudatum, it is called:
a. commensalism
b. parasitism
c. intraspecific competition
d. interspecific competition
Based on the results of the blood pressure exercise, which of the following blood pressure readings are significantly above normal, indicating hypertension?
a. 130/84
b. 122/80
c. 150/92
d. all of the above
Diastolic pressure is measured:
a. when blood flow just returns to normal in the artery
b. as soon as the cuff is completely tightened
c. by lightly tapping the arm
d. none of the above
When measuring blood pressure, the pressure is measured in:
a. millimeters of mercury
b. grams
c. liters
d. pounds
In the opened mouth of the leopard frog, one can see:
a. The nostrils
b. The glottis
c. The vomerine teeth
d. All of the above
An oscilloscope:
a. Provides stimulus to a tested muscle
b. Adds weight (load) to a tested muscle
c. Measures a twitch response of a tested muscle
d. A and C
In response to a stimulus, skeletal muscle fibers:
a. Always contract to 25% of their potential ability
b. Always contract to 50% of their potential ability
c. Always contract 100% of their potential ability
d. None of the above
Thank you so much!!!
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