31. The ovary is surrounded by a thin covering of ___.
[A] epithelium
[B] ampulla
[C] isthmus
[D] infundibulum
Show Answer
Correct Answer: A [epithelium]
Notes:
The ovary is surrounded by a thin covering of epithelium, surrounds the ovarian stroma, and is divided into two regions – the outer cortex and the inner medulla.
32. What of the following is not a reproduction-related problem?
[A] STDs
[B] Abortion
[C] Global warming
[D] Infertility
Show Answer
Correct Answer: C [Global warming]
Notes:
Global warming is an environmental-related problem. Whereas STDs, Abortion, and Infertility are reproduction-related problems.
33. What are the most common diseases in cows?
[A] Bovine Viral Diarrhoea
[B] Brucellosis
[C] Foot and Mouth disease.
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Bovine Viral Diarrhoea, Brucellosis and Foot and Mouth disease are the most common diseases in cows.
34. Which of the following is not a bacterium which causes disease in a poultry farm?
[A] Tapeworm
[B] Haemophilus gallinarium
[C] Salmonella gallinarium
[D] Pasteurella avicida
Show Answer
Correct Answer: A [Tapeworm]
Notes:
Several species of tapeworms cause taeniasis. Salmonella gallinarium causes foul typhoid or salmonellosis. Haemophilus gallinarium causes foul coryza. Pasteurella avicida causes chicken cholera.
35. What is the causative agent of chickenpox?
[A] Rubella
[B] Yersinia pestis
[C] Varicella-zoster virus
[D] None of these
Show Answer
Correct Answer: C [Varicella-zoster virus]
Notes:
Chickenpox is caused by the varicella-zoster virus, a member of the herpesvirus family. The disease is highly contagious and is known for its classic symptom of itchy, blister-like rash on the skin. Apart from chickenpox, the varicella-zoster virus also causes shingles, a disease that can occur later in life in those who have had chickenpox.
36. 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.
37. What is Bed Method in Vermicomposting?
[A] beds of chemicals matter are prepared
[B] beds of organic matter are prepared
[C] beds of phosphorus are prepared
[D] All of the above
Show Answer
Correct Answer: B [beds of organic matter are prepared]
Notes:
In Vermicomposting, the Bed Method in which beds of organic matter are prepared.
38. Which of the following diseases are not caused by smog?
[A] Breathing problem
[B] Throat cancer
[C] Skin cancer
[D] Rickets
Show Answer
Correct Answer: D [Rickets]
Notes:
Rickets is the softening and weakening of bones in children, usually because of an extreme and prolonged vitamin D deficiency. Vitamin D promotes the absorption of calcium and phosphorus from the gastrointestinal tract.
39. Self pollination will lead to
____:
[A] Inbreeding
[B] Overbreeding
[C] Outbreeding
[D] Rare breeding
Show Answer
Correct Answer: A [Inbreeding]
Notes:
Self-pollination can lead to inbreeding depression, or the reduced vitality in the species along with reduced chances of variation among members of species. This is why many flowers that could potentially self-pollinate have a built-in mechanism to avoid it.
40. Which of the following organ is responsible to remove nitrogenous waste from body?
[A] Liver
[B] Lungs
[C] Kidney
[D] Pancreas
Show Answer
Correct Answer: C [Kidney]
Notes:
The excretory system is responsible for removing nitrogen-containing wastes from the body. The main parts of the excretory system are the kidneys. The other functions of Kidney are:
• Regulate electrolyte (salt) concentrations,
• Regulate amount of fluid within the body,
• Help regulate blood pressure,
• Help maintain acid-base balance,
• Produce hormones that affect blood and bones.
