Abiotic Factors MCQs : This section focuses on the "Abiotic Factors". These Multiple Choice Questions (MCQs) should be practiced to improve the Abiotic Factors skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
According to evolutionary biologists why mammals are successful?
A. Expression of thoughts
B. Constant osmotic concentration
C. Right of speech
D. Constant body temperature
Question 2
For which of the following organisms thermoregulation is energetically expensive?
A. Large-sized aquatic animals
B. Small-sized terrestrial animals
C. Large-sized terrestrial animals
D. Medium-sized terrestrial animals
Question 3
Heat loss or heat gain is the function of which area?
A. Body volume
B. Surface area
C. Bodyweight
D. Body size
Question 4
In what form does hibernation occur in animals?
A. Occasional
B. Rhythmic
C. Periodic
D. Intermittent
Question 5
In which case, annual migration does not occur?
A. Arc Tern
B. Salamander
C. Salmon
D. Siberian Crane
Question 6
In which of the following organisms various kinds of thick-walled spores which help them survive unfavorable conditions and germinate on the availability of suitable environment found?
A. Humans
B. Fungi
C. Banyan
D. Mango
Question 7
In which of the following, organisms completely stop their metabolic activities?
A. Hibernation
B. Aestivation
C. Death
D. Diapause
Question 8
In which state do seeds enter under unfavorable conditions?
A. Diapause
B. Dormancy
C. Hibernation
D. Aestivation
Question 9
In which state do snails enter under unfavorable conditions?
A. Diapause
B. Hibernation
C. Dormancy
D. Aestivation
Question 10
In which state do zooplankton species in lakes and ponds enter under unfavorable conditions?
A. Diapause
B. Aestivation
C. Hibernation
D. Speciation
Question 11
The Siberian cranes migrate to which National Park in India?
A. Kaziranga National Park, Assam
B. Silent Valley National Park, Kerala
C. Chikla Lake Bird Sanctuary, Orissa
D. Keoladeo National Park, Rajasthan
Question 12
What are most of the invertebrates?
A. Thermoregulators
B. Osmoregulators
C. Thermoconformers
D. Conformers
Question 13
What do the desert lizards do when their body temperature drops?
A. They burrow in the sand
B. They hide in the soil
C. They move in a shady place
D. They bask in the sun
Question 14
What is maintaining the constancy of the internal environment called?
A. Conformation
B. Homeostasis
C. Adaptation
D. Migration
Question 15
What is diapause?
A. Shedding of leaves
B. Stage of suspended development
C. Aging in mammals
D. Programmed cell death
Question 16
What is the organism in which body temperature and the osmotic concentration of the body fluid changes with the ambient temperature and change with that of the ambient water osmotic concentration respectively called?
A. Regulators
B. Conformers
C. Migratory
D. Hibernating
Question 17
What is the suspension of metabolic activities during summer called?
A. Aestivation
B. Diapause
C. Menopause
D. Regulation
Question 18
What organisms are able to maintain homeostasis which ensures a constant body temperature, constant osmotic concentration, etc., are called?
A. Regulators
B. Conformers
C. Migratory
D. Hibernating
Question 19
Which alternative do the organisms have, if the stressful external conditions are localized or remain only for a short duration?
A. Conform
B. Regulate
C. Migrate
D. Speciate
Question 20
Which of the following organisms are capable of osmoregulation as well as thermoregulation?
A. Cactus
B. All mammals
C. Bryophytes
D. Angiosperms
Question 21
Which process do some snails and fishes undergo to prevent themselves from desiccation?
A. Dormancy
B. Migration
C. Aestivation
D. Hibernation
Question 22
Which rule states that in a cold climate, mammals possess shorter ears and limbs to minimize the heat loss?
A. Bergman’s rule
B. Blackman’s rule
C. Allen’s rule
D. Lindeman’s rule
Question 23
Which structure in higher plants serves as a means to overcome a period of dormancy, stress and then helps in dispersal?
A. Spores
B. Petals
C. Sepals
D. Seed
Question 24
Why small animals are rarely found in polar regions?
A. Less loss of heat
B. Their surface area and body mass ratio is high
C. Their surface area and body mass ratio is low
D. Their surface area is small