31. What is the main function of Pacinian corpuscles present in the hypodermis?
[A] tickling sensations
[B] Itching sensation
[C] blood supply to the hypodermis
[D] None of the above
Show Answer
Correct Answer: D [None of the above]
Notes:
Pacinian corpuscles are rapidly adapting receptors that detect gross pressure changes and vibrations in the skin.
32. Which of the following organ is involved in the purification of Inhaled Air?
[A] Cartilage
[B] Hair or cilia
[C] Mucus Membrane
[D] Septum
Show Answer
Correct Answer: B [Hair or cilia]
Notes:
Hair or cilia is the organ of the nose that is involved in the purification of Inhaled Air.
33. 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.
34. The stroma of the ovary consists of blood vessels, nerves, muscle fibers, and a type of protein called?
[A] Fibrin
[B] Collagen
[C] Albumin
[D] Globulin
Show Answer
Correct Answer: B [Collagen]
Notes:
The stroma of the ovary contains blood vessels, nerves, muscle fibers, and a type of protein called collagen. Collagen is the main structural protein of various connective tissues in animals. These are secreted by fibroblast cells.
35. Which of the following is not a characteristic of pneumonia in animals?
[A] Inflammation of lungs
[B] Accumulation of mucus in alveoli
[C] Fever
[D] Easy breathing
Show Answer
Correct Answer: D [Easy breathing]
Notes:
Inflammation of the lungs, accumulation of mucus in alveoli, and fever are characteristics of pneumonia in animals.
36. Which is the driving force of evolution?
[A] Variation
[B] Mutation
[C] Extinction
[D] Adaptation
Show Answer
Correct Answer: A [Variation]
Notes:
Variation is the driving force of evolution. Genetic variation is the presence of differences in the sequences of genes between different organisms of a species.
37. A process where new combinations of alleles are formed is called?
[A] Genetic Drift
[B] Mutation
[C] Genetic Recombination
[D] Natural selection
Show Answer
Correct Answer: C [Genetic Recombination]
Notes:
A process where new combinations of alleles are formed is called Genetic Recombination.
38. 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.
39. Some strains of Bacillus thuringiensis can kill certain insects such as __.
[A] Lepidoptera
[B] scorpion
[C] fruit fly
[D] dragonfly
Show Answer
Correct Answer: A [Lepidoptera]
Notes:
Some strains of Bacillus thuringiensis can kill certain insects such as Lepidoptera. They are an order of insects consisting of moths and butterflies.
40. Which angiosperm is vesselless?
[A] Maize
[B] Trochodendron
[C] Hydrilla
[D] Wheat
Show Answer
Correct Answer: B [Trochodendron]
Notes:
Trochodendron is a genus of flowering plants with one living species. It is vesselless angiosperm. Fewer than 200 species of angiosperms have the primitive feature of vesselless wood. With two exceptions— Trochodendron and Tetracentron; all vesselless angiosperms occur in the Magnolidae.
