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Ecology And Environment Mock Tests

64 questions available

Ecology And Environment Mock Test 1

Questions: 30

Ecology And Environment Mock Test 2

Questions: 30

Ecology And Environment Mock Test 3

Questions: 4

नमूना प्रश्न

NEET Biology
In an ecosystem, energy transfer between trophic levels follows the 10% law (Lindeman, 1942). If producers have 10,000 J of energy, how much energy is available to the secondary consumer?
A 10 J
B 100 J
C 1000 J
D 1 J
NEET Biology
Ecological succession on bare rock is an example of xerosere. Which of the following represents the correct sequence of sere stages in a xerosere?
A Lichen → Moss → Herb → Shrub → Forest
B Moss → Lichen → Herb → Shrub → Forest
C Herb → Lichen → Moss → Shrub → Forest
D Shrub → Herb → Lichen → Moss → Forest
NEET Biology
Which of the following interactions between species results in one species benefiting while the other is neither helped nor harmed?
A Mutualism
B Commensalism
C Parasitism
D Competition
NEET Biology
Ecological succession that begins on bare rock is called:
A Primary succession
B Secondary succession
C Cyclic succession
D Series succession
NEET Biology
In ecology, which of the following is an example of commensalism?
A Hermit crab using an empty snail shell for protection
B Plasmodium living in human blood
C Cuckoo (crow) laying eggs in a crow's nest
D Opilia (a parasitic plant) growing on another plant
NEET Biology
Which of the following is the correct statement about "population growth models" — exponential vs logistic growth?
A Exponential growth occurs when resources are unlimited (dN/dt = rN, J-shaped curve); logistic growth occurs when resources are limited and population reaches carrying capacity K (dN/dt = rN(K-N)/K, S-shaped curve)
B Exponential growth occurs when resources are limited; logistic growth occurs when resources are unlimited
C Both exponential and logistic growth produce S-shaped curves
D In logistic growth, the population never reaches a stable size; it continues to grow indefinitely
NEET Biology
Lindeman's 10% law of energy transfer states that:
A Only about 10% of energy is transferred from one trophic level to the next
B 10% of energy is lost as heat at each trophic level
C 10% of producers are consumed by herbivores
D Energy flow in an ecosystem is cyclic
NEET Biology
The logistic population growth model is represented by the equation dN/dt = rN(1 - N/K). When N approaches K, what happens to the population growth rate?
A It increases exponentially
B It becomes zero
C It becomes negative
D It remains constant at rN

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