Tag: biology

Questions Related to biology

The sphere of living matter found on the surface of earth comprises

origin of universe universe and organic evolution biology

  1. Lithosphere

  2. Hydrosphere

  3. Atmosphere

  4. Biosphere

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Correct Option: D

State whether the following statements are true or false .
Horowitz showed that the earliest organisms were probably heterotrophs.

origin of universe universe and organic evolution biology

  1. True

  2. False

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Correct Option: A
Explanation:

Beadle, Tatum and Horowitz showed that the earliest organisms were probably heterotrophs.

So, the statement is True.
the correct statement is 'Horowitz showed that the earliest organisms were probably heterotrophs.'

What is thickness of 'lithosphere' at ocean region?

origin of universe universe and organic evolution biology

  1. 10-20 km

  2. 10-12 km

  3. 12-18 km

  4. 10-18 km

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Correct Option: B

Choose the correct answers from the alternatives given .
All living organisms on the earth constitute

origin of universe universe and organic evolution biology

  1. biome

  2. biosphere

  3. population

  4. community

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Correct Option: B
Explanation:

The biosphere is the biological component of earth systems, which include the lithosphere, hydrosphere, atmosphere. The biosphere includes all living organisms on earth. together with the dead organic matter produced by them.

Who first gave concept of biosphere?

origin of universe universe and organic evolution biology

  1. Jabir bin ayan

  2. Augustine

  3. Edward Suess

  4. Edwin

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Correct Option: C

How much percent earth's volume lithosphere have?

origin of universe universe and organic evolution biology

  1. 3%

  2. 1%

  3. 2%

  4. 6%

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Correct Option: B

The Dehang Debang Biosphere Reserve is located in which among the following states?

origin of universe universe and organic evolution biology

  1. Manipur

  2. Assam

  3. Sikkim

  4. Arunachal Pradesh

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Correct Option: D

Nokrek Biosphere reserve is located in which of the following states?

origin of universe universe and organic evolution biology

  1. Assam

  2. Meghalaya

  3. Manipur

  4. Tripura

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Correct Option: B

Land mass occupies about

origin of universe universe and organic evolution biology

  1. 14 million hectares

  2. 140 million hectares

  3. 1400 million hectares

  4. 14000 million hectares

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Correct Option: D
Explanation:

Seen from space, the majority of the Earth's surface is covered by oceans – that makes up 71% of the surface of the Earth, with the remaining 29% for land.
So the correct option is '14000 million hectares'.

Minerals which maintain cation-anion balance in cells are 

biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants hydroponics hydroculture

  1. Cl and K

  2. K and Fe

  3. Cl and Mg

  4. Ca and Mg

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Correct Option: A