Question No:1
Diapause is
[A] Adaptation to terristerial life
[B] Stage of suspended developement seen in unfavourble conditions in many zooplankton species in lakes and ponds
[C] Method of migration from stressful habital to a more hospitable area
[D] It is a type of Symbiosis.
Question No:2
Amensalism is an association between two species where
[A] One species is harmed and other is benefitted
[B] One species is harmed and other is unaffected
[C] One species is benefitted and other is unaffected
[D] Both the species are harmed
Question No:3
Lichens are the associations of
[A] Bacteria and fungus
[B] Algae and bacterium
[C] Fungus and algae
[D] Fungus and virus
Question No:4
Which of the following is a partial root parasite?
[A] Sandal wood
[B] Mistletoe
[C] Orobanche
[D] Ganoderma
Question No:5
Which one of the following organisms reproduces sexually only once in its life time?
[A] Banana plant
[B] Mango
[C] Tomato
[D] Eucalyptus
Question No:6
Assertion: Ecology is basically concerned with four levels of biological organization organism, populations, communities and biomes.
Reason: Ecology is a subject which studies the interactions among organisms and between the organism & its physical environment.
[A] IF both the assertion and the reason are true and- the reason is, a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason
Question No:7
Assertion: Temperature is the most ecologically relevant environmental factor
Reason: Temperature affects kinetics of enzyme.
[A] IF both the assertion and the reason are true and- the reason is, a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason
Question No:8
Assertion: Many species of small plants (herbs & shrubs) growing in forests are adapted to photosynthesize optimally under very low light conditions.
Reason: These plants are constantly overshadowed by tall, canopied trees.
[A] IF both the assertion and the reason are true and- the reason is, a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason
Question No:9
Assertion: Availability of light on land is closely linked with that of temperature.
Reason: Sun is source for both light & temperature.
[A] IF both the assertion and the reason are true and- the reason is, a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason
Question No:10
Assertion: Mammals can thrive weather they live in Antarctica or in Sahara desert.
Reason: Success of mammals is largely due to their ability to maintain a constant body temperature.
[A] IF both the assertion and the reason are true and- the reason is, a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason
Question No:11
Assertion: Very small animals are rarely found in Polar Regions.
Reason: Small animals have a larger surface area relative to their volume; they tend to lose body heat very fast when it is cold outside.
[A] IF both the assertion and the reason are true and- the reason is, a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason
Question No:12
Assertion: Mammals from colder climates generally have shorter ears and limbs.
Reason: It is to maximize heat loss.
[A] IF both the assertion and the reason are true and- the reason is, a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason
Question No:13
Assertion: Predators can help in maintaining species diversity in a community.
Reason: It is by reducing the intensity of competition among competing prey species.
[A] IF both the assertion and the reason are true and- the reason is, a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason
Question No:14
Assertion: Mycorrhizae are association between fungi & roots of higher plants.
Reason: Lichens represent mutualistic relationship between fungus and photo synthetic algae or cyanobacteria.
[A] IF both the assertion and the reason are true and- the reason is, a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason
Question No:15
Assertion: Parasitism and predation are considered to be negative interactions.
Reason : Parasites and predators limit the population of their host species.
[A] IF both the assertion and the reason are true and- the reason is, a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason
Ecology Organism and Population Mock Test-12
CategoriesNEET Biology