Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice origin of universe universe and organic evolution biology

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

  1. Lithosphere

  2. Hydrosphere

  3. Atmosphere

  4. Biosphere
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The biosphere is the global sum of all ecosystems, representing the zone of life on Earth.

Multiple choice origin of universe universe and organic evolution biology

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

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
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.'

Multiple choice origin of universe universe and organic evolution biology

What is thickness of 'lithosphere' at ocean region?

  1. 10-20 km

  2. 10-12 km

  3. 12-18 km

  4. 10-18 km
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The oceanic lithosphere is generally thinner than the continental lithosphere, typically ranging from 5 to 100 km, with 10-12 km being a common textbook figure for the crustal portion.

Multiple choice origin of universe universe and organic evolution biology

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

  1. biome

  2. biosphere

  3. population

  4. community
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

Multiple choice origin of universe universe and organic evolution biology

Who first gave concept of biosphere?

  1. Jabir bin ayan

  2. Augustine

  3. Edward Suess

  4. Edwin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Eduard Suess, an Austrian geologist, coined the term 'biosphere' in 1875 to describe the place on Earth's surface where life dwells.

Multiple choice origin of universe universe and organic evolution biology

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

  1. Manipur

  2. Assam

  3. Sikkim

  4. Arunachal Pradesh
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Dihang-Dibang Biosphere Reserve is located in the state of Arunachal Pradesh in India.

Multiple choice origin of universe universe and organic evolution biology

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

  1. Assam

  2. Meghalaya

  3. Manipur

  4. Tripura
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nokrek Biosphere Reserve is located in the West Garo Hills district of Meghalaya, India.

Multiple choice origin of universe universe and organic evolution biology

Land mass occupies about

  1. 14 million hectares

  2. 140 million hectares

  3. 1400 million hectares

  4. 14000 million hectares
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.
Multiple choice biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants hydroponics hydroculture

Minerals which maintain cation-anion balance in cells are 

  1. Cl and K

  2. K and Fe

  3. Cl and Mg

  4. Ca and Mg
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Potassium (K) and Chloride (Cl) ions are the primary minerals responsible for maintaining the osmotic potential and cation-anion balance within plant cells.