31. Which gland stimulates the adrenal gland to secrete cortisol?
[A] Pituitary gland
[B] Thyroid gland
[C] Parathyroid glands
[D] Adrenal glands
Show Answer
Correct Answer: A [Pituitary gland]
Notes:
The pituitary gland stimulates the adrenal gland to secrete cortisol. Cortisol is a steroid hormone.
32. Whooping cough is caused by which of the following causative agent?
[A] Pasteurella pestis
[B] Clostridium tetani
[C] Bordetella pertussis
[D] Human papillomavirus
Show Answer
Correct Answer: C [Bordetella pertussis]
Notes:
Whooping cough is caused by Bordetella pertussis causative agent. It is a Gram-negative, aerobic, pathogenic, and encapsulated coccobacillus of the genus Bordetella.
33. Which of the following is not an endoparasite?
[A] Ticks
[B] Tapeworms
[C] Liver fluke
[D] Roundworm
Show Answer
Correct Answer: A [Ticks]
Notes:
Anaplasmosis, babesiosis, ehrlichiosis, tularemia, tick-borne relapsing fever are diseases caused by ticks. Ticks are small, blood-sucking bugs.
34. Which of the following is also known as rabbit fever?
[A] Rinderpest
[B] Tularemia
[C] Vesicular stomatitis
[D] None of these
Show Answer
Correct Answer: B [Tularemia]
Notes:
Tularemia is also known as rabbit fever or deer fly fever. Tularemia is caused by the bacterium Francisella tularensis. The disease mainly affects rabbits and rodents.
35. What is a trait that “overpowers” and hides another trait is called?
[A] Overpowering trait
[B] Complex trait
[C] Recessive trait
[D] Dominant Trait
Show Answer
Correct Answer: D [Dominant Trait]
Notes:
A dominant Trait is a trait that “overpowers” and hides another trait.
36. What are the two main technologies that enabled the birth of modern biotechnology?
[A] red biotechnology and green biotechnology
[B] classical and traditional biotechnology
[C] genetics and mathematics
[D] genetic engineering and maintenance of a sterile environment
Show Answer
Correct Answer: D [genetic engineering and maintenance of a sterile environment]
Notes:
Genetic engineering and maintenance of a sterile environment are the two main technologies that enabled the birth of modern biotechnology.
37. Uric acid is the chief nitrogenous wastes in ____:
[A] Frogs
[B] Birds
[C] Fishes
[D] Mankind
Show Answer
Correct Answer: B [Birds]
Notes:
Land snails, insects, birds, and some reptiles excrete uric acid as the major nitrogenous waste. The white, crystalline substance seen in a typical bird or lizard “poop” is actually urine: a little pool of uric acid crystals in a very small amount of water.
38. Which of the following are warm-blooded animals?
[A] Whales
[B] Draco
[C] Alytes
[D] Whale Sharks
Show Answer
Correct Answer: A [Whales]
Notes:
Animals, such as mammals and birds, that maintain a constant body temperature regardless of the temperature of the surroundings are called warm blooded. These include birds and mammals. Whales are aquatic mammals hence, being mammal, they are warm blooded. The have a thick layer of fats called blubber underneath their skin to maintain temperature even in cold water of oceans.
39. Where does internal fertilization typically occur?
[A] Inside the female body
[B] Outside the female body
[C] Inside the male body
[D] Outside the male body
Show Answer
Correct Answer: A [Inside the female body]
Notes:
Internal fertilization is a mode of reproduction wherein the fusion of male and female gametes (sperm and egg) occurs inside the female body. It’s a common method in terrestrial animals due to the higher survival rate of fertilized eggs within a protected internal environment. Contrastingly, external fertilization takes place outside the female body, often in aquatic environments.
40. Which of the following is a form of sexual reproduction?
[A] Fission
[B] Budding
[C] Fragmentation
[D] Haemapheoditism
Show Answer
Correct Answer: D [Haemapheoditism]
Notes:
Hermaphroditism is a form of sexual reproduction. Hermaphrodite is an organism that has reproductive organs normally associated with both male and female sexes. Hermaphroditic plants—most flowering plants, or angiosperms—are bisexual. Hermaphroditic animals—mostly invertebrates such as worms, moss animals, trematodes, snails, slugs etc are usually parasitic, permanently attached to another animal or plant.
