31. Which of the following animal eats its own feces?
[A] Pig
[B] Goat
[C] Rabbit
[D] Elephant
Show Answer
Correct Answer: C [Rabbit]
Notes:
Rabbit eats its own feces. Rabbits and hares beat this problem with a special kind of digestion called hindgut fermentation. That’s why they eat their own feces and digest it a second time.
32. How much food is harvested for food in a cow?
[A] 40 %
[B] 50 %
[C] 60 %
[D] 80 %
Show Answer
Correct Answer: C [60 %]
Notes:
60% of food is harvested for food in a cow. There are many different dairy products from cows, but some of the ones you may be most familiar with include milk, cheese, yogurt, butter, and ice cream.
33. Which of the following is an olfactory organ?
[A] Eye
[B] Ear
[C] Nose
[D] Skin
Show Answer
Correct Answer: C [Nose]
Notes:
The nose is an olfactory organ. This olfactory system helps us perceive different odors. This sense of organ also aids in our sense of taste. The sense of smell is also known as olfaction.
34. The bone around the nose contains hollow, air-filled chambers known as __
[A] Sinuses
[B] Turbinates
[C] Mucus Membrane
[D] Septum
Show Answer
Correct Answer: A [Sinuses]
Notes:
Sinuses are the bone around the nose that contains hollow, air-filled chambers. Mucus from the sinuses flows into the nasal cavity.
35. Which of the following part of the brain processes smell?
[A] Olfactory cortex
[B] Amygdala
[C] Olfactory bulb
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
The olfactory cortex, Amygdala, and Olfactory bulb are parts of the brain processes smell.
1. Olfactory Cortex is the portion of the cerebral cortex concerned with the sense of smell.
2. The amygdala is processing fearful and threatening stimuli.
3. The olfactory bulbs receive information about odors from the nose and send it to the brain via the olfactory tract.
36. A membrane, or sac, that surrounds your heart is called a __.
[A] pericardium
[B] capillaries
[C] vessels
[D] None of these
Show Answer
Correct Answer: A [pericardium]
Notes:
A membrane, or sac, that surrounds your heart is called the pericardium. It holds the heart in place and helps it to function properly.
37. Which of the following diseases can be transmitted to humans during milking?
[A] foot and mouth disease
[B] smallpox
[C] Ranikhet
[D] Cowpox
Show Answer
Correct Answer: D [Cowpox]
Notes:
Cowpox diseases can be transmitted to humans during milking. Cowpox is an infectious disease caused by the cowpox virus.
38. Which of the following is the most fatal non-infectious disease?
[A] AIDS
[B] Cancer
[C] Diabetes
[D] Obesity
Show Answer
Correct Answer: B [Cancer]
Notes:
Cancer is the most fatal non-infectious disease. In cancer, some cells in the body grow uncontrollably and spread to other parts of the body.
39. Which of the following is an example of Phenotype?
[A] Eye color
[B] Sound of your voice
[C] Hair color
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Eye color, Sound of your voice, and Hair color are examples of Phenotype. The observable physical properties of an organism are called Phenotypes.
40. Membrane lipids of chillsensitive plants contain ____:
[A] Low proportion of saturated fatty acids
[B] Equal proportion of saturated and unsaturated fatty acids
[C] Low proportion of unsaturated fatty acids
[D] High proportion of unsaturated fatty acids
Show Answer
Correct Answer: D [High proportion of unsaturated fatty acids]
Notes:
The membranes of chill sensitive plants have about a 2 :1 ratio of unsaturated to saturated fatty acids. It has been seen that the proportion of unsaturated membrane fatty acids increases and the critical temperature decreases so that chill-sensitive plants are more acclimitized to low temperatures.
