31. The least distance of distinct vision for a young adult with normal vision is __
[A] 25 m
[B] 20 m
[C] 25 cm
[D] 20 cm
Show Answer
Correct Answer: C [25 cm]
Notes:
The least distance of distinct vision for a young adult with normal vision is 25 cm.
32. The ovary is suspended by which of the following?
[A] fallopian tubes
[B] ovarian walls
[C] ligaments
[D] mesovarium
Show Answer
Correct Answer: D [mesovarium]
Notes:
The ovaries are located on each side of the lower abdomen, near the kidney on its side. It is suspended from the dorsal body wall by a mesentery, called the mesovarium.
33. Which of the following is called the end part of the oviduct?
[A] isthmus
[B] ampulla
[C] ostium
[D] thalamus
Show Answer
Correct Answer: A [isthmus]
Notes:
Isthmus is called the end part of the oviduct. It is a narrow strip of land that connects two larger landmasses and separates two bodies of water.
34. Which of the following are viral diseases of animals?
[A] Venezuelan equine encephalomyelitis
[B] African swine fever
[C] Both 1 and 2
[D] Neither 1 and 2
Show Answer
Correct Answer: C [Both 1 and 2]
Notes:
Venezuelan equine encephalomyelitis and African swine fever are viral diseases of animals.
35. Where is compound manure made?
[A] Rotted vegetable and animal refuse
[B] Farmyard manure and green manure
[C] Farm refuse and household refuse
[D] Organic wastes from which biogas has been extracted
Show Answer
Correct Answer: A [Rotted vegetable and animal refuse]
Notes:
Compound manure is made of Rotted vegetables and animal refuse. A fertilizer that contains two or more nutrients and is also known as a multi-nutrient fertilizer is called Compound manure.
36. The term biomass most often refers to which of the following?
[A] Inorganic matter
[B] Organic matter
[C] Chemicals
[D] Ammonium compounds
Show Answer
Correct Answer: B [Organic matter]
Notes:
The term biomass most often refers to Organic matter. Organic material is that was alive and is now in or on the soil.
37. Carbon monoxide poisoning can be cured by
____:
[A] Drinking lemon-water
[B] Eating butter
[C] Exposing the affected person to fresh oxygen
[D] Consuming multi-vitamin tablet
Show Answer
Correct Answer: C [Exposing the affected person to fresh oxygen]
Notes:
Carbon monoxide poisoning can be cured by exposing the affected person to fresh oxygen. It is because CO posoning leads to oxygen starvation of body cells. This therapy involves breathing pure oxygen in a chamber in which the air pressure is about two to three times higher than normal. This speeds the replacement of carbon monoxide with oxygen in your blood. Hyperbaric oxygen therapy may be used in cases of severe carbon monoxide poisoning.
38. Bio-magnification implies ____:
[A] Food is magnified
[B] Living beings are magnified
[C] Light is magnified
[D] Toxic matters are magnified
Show Answer
Correct Answer: D [Toxic matters are magnified]
Notes:
Biomagnification is the sequence of processes in an ecosystem by which higher concentrations of a particular chemical such as the pesticide DDT, are reached in organisms higher up the food chain. It’s principal cause is eutrophication of stagnant water leading to the increase in BOD level. The some biomagnifcation has led to the ban on the use of DDT as a pesticide.
39. Which vein brings clean blood from the lungs into the heart?
[A] Vena Cava
[B] Pulmonary Vein
[C] Hepatic Vein
[D] Renal Vein
Show Answer
Correct Answer: B [Pulmonary Vein]
Notes:
The pulmonary veins are a set of veins that deliver clean oxygenated blood from the lungs to the heart. It brings oxygen-rich blood to the left atrium. Systemic veins deliver deoxygenated blood to the heart.
40. Which of the following are the largest fixator of solar energy?
[A] Bacteria
[B] Protozoa
[C] Fungi
[D] Green plants
Show Answer
Correct Answer: D [Green plants]
Notes:
Plants and photosynthetic organisms utilize this solar energy in fixing large amounts of CO2 while amounts consumed by human beings are relatively small representing only 10% of the energy converted during photosynthesis. The process of photosynthesis in plants involves a series of steps and reactions that use solar energy, water, and carbon dioxide to produce organic compounds and oxygen.
