Decomposers like fungi and bacteria are

(i) autotrophs     (ii) heterotrophs
(iii) saprotrophs  (iv) chemo-autotrophs

Choose the correct answer

1. (i) and (iii)

2. (i) and (iv)

3. (ii) and (iii)

4. (i) and (ii)

Subtopic:  Decomposition |
 86%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Q.2 The process of mineralization by microorganisms helps in the release of

1. inorganic nutrients from the humus
2. both organic and inorganic nutrients from detritus
3. organic nutrients from the humus
4. inorganic nutrients from detritus and formation of humus.

Subtopic:  Decomposition |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Productivity is the rate of production of biomass expressed in

i kcal m-3 yr-1              ii gm-2 yr-1             
iii g-1 yr-1                iv kcal m-2 yr-1

1. (ii)

2. (iii)

3. (ii) and (iv)

4. (i) and (iii)

Subtopic:  Ecosystem Productivity |
 82%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

An inverted pyramid of biomass can be found in which the ecosystem?

1. Forest

2. Marine

3. Grassland

4. Tundra

Subtopic:  Ecological Pyramids |
 86%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which of the following is not a producer?

1. Spirogyra

2. Agaricus

3. Volvox

4. Nostoc

Subtopic:  Ecological Flow |
 67%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Which of the following ecosystems is most productive in terms of net primary production?

1. Deserts

2. Tropical rain forests

3. Oceans

4. Estuaries

Subtopic:  Ecosystem Productivity |
 89%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Pyramid of numbers is

1. Always upright
2. Always inverted
3. Either upright or inverted
4. Neither upright nor inverted

Subtopic:  Ecological Pyramids |
 77%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Approximately how much of the solar energy that falls on the leaves of the plant is converted to chemical energy by photosynthesis?

1. Less than 1%

2. 2-10%

3. 30%

4. 50%

Subtopic:  Energy Flow |
 71%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Among the following where do you think the process of decomposition would be the fastest?

1. Tropical rain forest

2. the Antarctic

3. Dry arid region

4. Alpine region

Subtopic:  Decomposition |
 89%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

How much of the net primary productivity of a terrestrial ecosystem is eaten and digested by herbivores?

1. 1%

2. 10%

3. 40%

4. 90%

Subtopic:  Ecosystem Productivity |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch