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Test: Ecology (March 12) - NEET MCQ


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15 Questions MCQ Test - Test: Ecology (March 12)

Test: Ecology (March 12) for NEET 2024 is part of NEET preparation. The Test: Ecology (March 12) questions and answers have been prepared according to the NEET exam syllabus.The Test: Ecology (March 12) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Ecology (March 12) below.
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Test: Ecology (March 12) - Question 1

Non-essential for an ecosystem is/are:

Detailed Solution for Test: Ecology (March 12) - Question 1

Ecosystem consists of biotic component producer, consumer and decomposer. Producer fix solar energy into useable forms and decomposer breaks the complex organic matter into simpler forms but consumer do not perform specific function so non-essential.

Test: Ecology (March 12) - Question 2

How do urbanization and an increase in population affect biodiversity?

Detailed Solution for Test: Ecology (March 12) - Question 2

Urbanization means the increasing number of people that live in urban areas due to shifting from rural areas to urban areas. It affects the population density and leads to more loss of flora and fauna since more space for residence is occupied by humans.

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Test: Ecology (March 12) - Question 3

What is the protection and conservation of species in their natural habitat called?

Detailed Solution for Test: Ecology (March 12) - Question 3

The on-site or the protection and conservation of species (genetic resources) in their natural habitat (populations of plant or animal species) is called in-situ conservation. Areas such as biosphere reserves, national parks, and wildlife sanctuaries are the places were in-situ conservation is done.

Test: Ecology (March 12) - Question 4

Ecosystem follows:

Detailed Solution for Test: Ecology (March 12) - Question 4

The chemical energy of food is the main source of energy required by all living organisms. This energy is transmitted to different trophic levels along the food chain. This energy flow is based on two different laws of thermodynamics:

  • First law of thermodynamics, that states that energy can neither be created nor destroyed, it can only change from one form to another.
  • Second law of thermodynamics, that states that as energy is transferred more and more of it is wasted.
Test: Ecology (March 12) - Question 5

When we compare the relationship between species richness and area for wide variety of taxa, the graph appears to be a :

Detailed Solution for Test: Ecology (March 12) - Question 5

When a graph is drawn to compare the relationship between species richness and area for wide variety of texa, the graph appears to be a rectangular hyperbola.

Test: Ecology (March 12) - Question 6

What is the protection and conservation of species outside their natural habitat called?

Detailed Solution for Test: Ecology (March 12) - Question 6

The off-site or the protection and conservation of species (genetic resources) outside their natural habitat (populations of plant or animal species) is known as ex-situ conservation. Areas such as botanical gardens, zoos, Gene banks, Tissue culture banks are the places were ex-situ conservation is done.

Test: Ecology (March 12) - Question 7

If all the members of a host species die then all its unique parasites also die off, representing:

Detailed Solution for Test: Ecology (March 12) - Question 7

If all members fo a host species die the parasite that obtain their food from the particular host also die off due to lack of food. This represent co-existence of species.

Test: Ecology (March 12) - Question 8

When we will move away from the equator towards poles, we will find:

Detailed Solution for Test: Ecology (March 12) - Question 8

When we will move away from the equator towards poles there is a gradual decrease in the species diversity. This is because climatic condition becomes gradually adverse as we move from equator to poles.

Test: Ecology (March 12) - Question 9

Another term used for decomposers is:

Detailed Solution for Test: Ecology (March 12) - Question 9

Decomposers breaks the complex organic matter present in dead plants and animals into simpler form that can be reused. They acts as reducer of dead and decaying matters.

Test: Ecology (March 12) - Question 10

What is the rate at which solar energy is converted and stored by the producers per unit area over a time period called?

Detailed Solution for Test: Ecology (March 12) - Question 10

Primary productivity is the rate at which solar energy is converted and stored by the producers per unit area over a time period. It involves the conversion of solar energy into organic substances by photosynthetic and chemosynthetic autotrophs.

Test: Ecology (March 12) - Question 11

If we say, India has about 50,000 type of rice and 1000 types of varieties of mango what level of diversity it indicates:

Detailed Solution for Test: Ecology (March 12) - Question 11

India has about 50,000 type of rice and 1000 types of varieties of mango. This thigh level of diversity indicates very high genetic diversity and one of the largest in the world.

Test: Ecology (March 12) - Question 12

For greater efficiency a food chain must be:

Detailed Solution for Test: Ecology (March 12) - Question 12

For greater efficiency a food chain must have three to four trophic levels. At each trophic levels loss of energy is very high so very small amount of energy is left after there trophic level.

Test: Ecology (March 12) - Question 13

A detritus food chain will start with which of the following?

Detailed Solution for Test: Ecology (March 12) - Question 13

A detritus food chain begins with dead organic matter. It is made of decomposers which are heterotrophic organism fungi and bacteria.Rhizophora species is a saprophyticheterotrophs.

Test: Ecology (March 12) - Question 14

Alexander Von Humbolt described for the first time 

Detailed Solution for Test: Ecology (March 12) - Question 14

Species area relationship is the relationship between the area and the particular habitat. It is dependent on immigration, extinction and clustering etc. It was first studied by Alexander Von Humbolt.

Test: Ecology (March 12) - Question 15

Stability will be provided to the ecosystem by:

Detailed Solution for Test: Ecology (March 12) - Question 15

Food web is formed by interaction between a numbers of food chains having common members. Stability of ecosystem largely depends upon the kinds of food web exists in it for proper flow of energy.

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