Free Organisms And Populations (Daily Quiz: 11) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Free Organisms And Populations (Daily Quiz: 11) Time:

Question-1

Given below are some animals
  1. Reptiles
  2. Snails
  3. Killer whales
  4. Green crab
  5. Desert pupfish
  6. Amphibians
  7. Humans
Identify eurythermals from the given examples.

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

Killer whales, green crab, desert pupfish and humans are all eurythermal. Eurytherms are the organisms which can survive and thrive over a wide range of temperatures.


Question-2

Gause's principle of competitive exclusion states that

(a)

(b)

(c)

(d)

Explanation:

Answer: (a)

Two or more species with closely similar niche requirements cannot exist indefinitely in the same area as sooner or later they come into competition for possession of it. This is called as Gause's principle of competitive exclusion, which states that an ecological niche cannot be simultaneously and completely occupied by established populations of more than one species. Two species can live in same habitat but not in the same niche. More similar the two niches are, severe the competition is.


Question-3

In which one of the following pairs is the specific characteristic of a soil not correctly matched?

(a)

(b)

(c)

(d)

Explanation:

Answer: (d)

Black soil forms the largest group. It is developed mainly on the Deccan traps of Maharashtra, Madhya Pradesh and Kathiawar. Because of its hydrology and climatic conditions of the environment, the medium and deep black soils are very suitable for cotton cultivation. Laterite soil is rich in insoluble iron oxides and aluminium compounds, which gives laterites a reddish appearance. Chernozems are rich in nutrients (due to abundant organic rich compounds ) and consequently the most fertile in the world.


Question-4

Precipitation due to annual variation in seasons includes

(a)

(b)

(c)

(d)


Question-5

Conformers are inactive in adverse conditions due to

(a)

(b)

(c)

(d)


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