31. What is the deep subcutaneous tissue (hypodermis) made of?
[A] fat
[B] connective tissue
[C] Both 1 and 2
[D] keratin
Show Answer
Correct Answer: C [Both 1 and 2]
Notes:
The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.
32. Breathing, heartbeat, sleep, wakefulness, and motor learning are controlled by which part of the brain?
[A] Forebrain
[B] Midbrain
[C] Hindbrain
[D] All of the above
Show Answer
Correct Answer: C [Hindbrain]
Notes:
Breathing, heartbeat, sleep, wakefulness, and motor learning are controlled by Hindbrain. The hindbrain is composed of Cerebellum, Medulla, and Pons.
33. What are the most important nerves in the human body?
[A] cranial
[B] spinal
[C] Both 1 and 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: C [Both 1 and 2]
Notes:
The most important nerves in the human body are the cranial and spinal nerves. The cranial nerves are 12 in number while the spinal nerves are 31 in number.
34. What is the function of systemic circulation?
[A] oxygenated blood is pumped from the heart to every organ
[B] carrying deoxygenated blood away from the heart
[C] oxygenated blood is supplied to the heart
[D] None of the above
Show Answer
Correct Answer: A [oxygenated blood is pumped from the heart to every organ]
Notes:
Systemic circulation is another part of the circulation where oxygenated blood is pumped from the heart to every organ and tissue in the body, and deoxygenated blood returns to the heart again.
35. What is the cause of footrot?
[A] Naegleria fowleri
[B] Bordetella pertussis
[C] Dichelobacter nodosus
[D] Pasteurella pestis
Show Answer
Correct Answer: C [Dichelobacter nodosus]
Notes:
Dichelobacter nodosus bacteria is the cause of footrot. It is a common cause of lameness in cattle.
36. Mycorrhiza is a symbiotic association between
[A] Bacteria and fungi
[B] Algae and fungi
[C] Fungi and roots of higher plants
[D] Blue green algae and roots of higher plants
Show Answer
Correct Answer: C [Fungi and roots of higher plants]
Notes:
Mycorrhiza is a symbiotic association between fungi and roots of higher plants. A non-disease-producing association in which the fungus invades the root to absorb nutrients is called Mycorrhiza.
37. Which is one of the essential nutrients for the growth and development of plants?
[A] Potassium
[B] Phosphorus
[C] Nitrate
[D] Sodium
Show Answer
Correct Answer: B [Phosphorus]
Notes:
Phosphorus is one of the essential nutrients for the growth and development of plants.
38. In which one of the following is swim bladder absent?
[A] Cartilaginous fish
[B] Silverfish
[C] Cuttlefish
[D] Bony fish
Show Answer
Correct Answer: A [Cartilaginous fish]
Notes:
The swim bladder is an internal gas-filled organ that contributes to the ability of a fish to control its buoyancy, and thus to stay at the current water depth without having to waste energy in swimming. The cartilaginous fish (e.g. sharks and rays) split from the other fishes about 420 million years ago and lack both lungs and swim bladders, suggesting that these structures evolved after that split.
39. Synapse gap is present between which of the following?
[A] Two Kidneys
[B] Two neurons
[C] Brain and Spinal Cord
[D] None of the above
Show Answer
Correct Answer: B [Two neurons]
Notes:
The gap between the two neurons is called the synapse. It is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron. Synapses are essential to neuronal function : neurons are cells that are specialized to pass signals to individual target cells, and synapses are the means by which they do so.
40. Clitellum is found in ____:
[A] Leech
[B] Snail
[C] Nereis
[D] Earthworm
Show Answer
Correct Answer: D [Earthworm]
Notes:
The clitellum is a thickened glandular and non-segmented section of the body wall near the head in earthworms and leeches, that secretes a viscid sac in which the eggs are deposited. Its main function is to store the eggs of the earthworm.
