31. By which of the following do arteries form a network between veins?
[A] Capillaries
[B] Veins
[C] Arteries
[D] Valves
Show Answer
Correct Answer: A [Capillaries]
Notes:
Capillaries are small, tube-like vessels that form a network between arteries to veins.
32. Which of the following is included in the large intestine?
[A] colon
[B] rectum
[C] anus
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
The colon, rectum and anus are present in the large intestine. It’s all a single, long tube that continues through the small intestine as food through the end of its journey through your digestive system.
33. Which gland is located between the two halves of the brain?
[A] Pineal gland
[B] Gonads
[C] Pancreas
[D] Parathyroid glands
Show Answer
Correct Answer: A [Pineal gland]
Notes:
The pineal gland is located between the two halves of the brain.
34. What cannot sperm do in the absence of acrosome?
[A] Cannot penetrate the egg
[B] Cannot get energy
[C] Cannot get food
[D] Cannot swim
Show Answer
Correct Answer: A [Cannot penetrate the egg]
Notes:
The acrosome contains digestive enzymes. Digestive enzymes break down the outer membrane of the ovum. In the absence of acrosome, sperm cannot enter the egg.
35. Which of the following does not affect health?
[A] Genetic disorders
[B] Infections
[C] LifeStyle
[D] Health Insurance
Show Answer
Correct Answer: D [Health Insurance]
Notes:
Genetic disorders, Infections, and LifeStyle always affect health. Whereas Health Insurance is a type of insurance that covers medical expenses caused by an illness.
36. The type of kidneys present in frog are ___:
[A] Metanephros
[B] Pronephros
[C] Archinephros
[D] Mesonephros
Show Answer
Correct Answer: D [Mesonephros]
Notes:
In the frog, Mesonephros is the functional kidney in embryonic as well as adult stage and mesonephric duct functions as both urinary and genital duct. Tubules of the anterior region of kidney get connected to testis to collect spermatozoa, while the posterior region remains as functional kidney and transports urinary wastes to the exterior.
37. Which of the following micro-organism causes diseases like polio and chicken pox?
[A] Protozoa
[B] Bacteria
[C] Virus
[D] Algae
Show Answer
Correct Answer: C [Virus]
Notes:
Both polio and chicken pox are caused by virus. Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus; while, Chickenpox, also known as varicella, is a highly contagious disease caused by the initial infection with varicella zoster virus (VZV).
38. The animals in which the body cavity is absent are known as ____:
[A] Wild
[B] Coelomates
[C] Pseudocoelomates
[D] Acoelomates
Show Answer
Correct Answer: D [Acoelomates]
Notes:
Animals that have a cavity between body wall and digestive tract are known as coelomates for e.g.. annelids, molluscs, arthropods, Echinodermata, and chordates etc. In contrast, animals in which the body cavity is absent are known as acoelomates. Platyhelminthes is an example of acoelomates. The presence or absence of body cavity or coelom plays a very important role in the classification of animals.
39. Yeast is a ____:
[A] Bacteria
[B] Fungi
[C] Algae
[D] Bryophyte
Show Answer
Correct Answer: B [Fungi]
Notes:
Yeast are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom. They are estimated to constitute 1% of all described fungal species. Yeasts, such as Candida albicans, are opportunistic pathogens and can cause infections in humans. Commercially they are widely used in production of alcohol and carbon dioxide. Hence, they are known to lay foundation of bakery and brewery industries.
40. Which type of plants are very tall and have hard and thick brown stem?
[A] Trees
[B] Herbs
[C] Shrubs
[D] None of the above
Show Answer
Correct Answer: A [Trees]
Notes:
The plants, which have hard and thick brown stem and are very tall are called trees. The stems have branches in upper part and much above the ground. For example, mango, neem. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a woody trunk and branches as a way to tower above other plants for sunlight.