Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice origin of universe universe and organic evolution biology

Inferior planets are :

  1. Farthest from Sun

  2. In orbits outside that of earth

  3. In orbits inner that of earth

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

Inferior planets are those whose orbits lie within the orbit of the Earth, specifically Mercury and Venus.

Multiple choice origin of universe universe and organic evolution biology

Lithosphere comprises :

  1. Pedosphere and outer crust.

  2. Outer crust and lower crust .

  3. Pedosphere, outer crust and lower crust.

  4. Crust and part of upper mantle.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The lithosphere is the rigid outermost shell of a terrestrial-type planet, consisting of the crust and the uppermost part of the mantle.

Multiple choice origin of universe universe and organic evolution biology

Concentration of ozone in troposphere is :

  1. 0.05 ppm

  2. 0.1 ppm

  3. 1.5 ppm

  4. 10.0 ppm
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The concentration of ozone in the troposphere is typically very low, often cited around 0.05 ppm in clean or background conditions.

Multiple choice origin of universe universe and organic evolution biology

Which was not present freely in the early atmosphere of the earth?

  1. Water

  2. Carbon monoxide

  3. Hydrogen

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

According to modern theories of chemical evolution and Oparin-Haldane's hypothesis, the early atmosphere of the earth was reducing, containing water vapor, hydrogen, ammonia, and methane, but free oxygen was absent.

Multiple choice origin of universe universe and organic evolution biology

Lithosphere comprises

  1. Crust part of earth

  2. Crust and outer part of mantle

  3. 1-2 km thick cover of earth comprising rocks

  4. Outer 10-15 km thick crust of earth.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The lithosphere is the rigid outer part of the earth, comprising the crust and the solid, outermost part of the upper mantle.

Multiple choice origin of universe universe and organic evolution biology

Study of impact of extra-terrestrial environments on organisms belonging to earth is component of

  1. Ecology

  2. Cosmology

  3. Exobiology

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

Exobiology, also known as astrobiology, is the study of the origin, evolution, and distribution of life in the universe, including the impact of extra-terrestrial environments on life.

Multiple choice origin of universe universe and organic evolution biology

Archaeology and linguistics are constituents of

  1. Ethology

  2. Ethnology

  3. Anthropometry

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

Anthropology is the broad study of humans, which includes subfields like archaeology (the study of human history through artifacts) and linguistics (the study of language).

Multiple choice origin of universe universe and organic evolution biology

Assertion : Formation of new species is called speciation.

Reason : The deme has a common gene pool.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion

  3. If the assertion is true but the reason is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The phenomenon of development of a new species from pre - existing one is called speciation. A species is a collection of demes. The deme is a groups of populations with a common gene pool.