NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 3460 - 3464 of 3511

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Question number: 3460

» Ecology and Environment » Organisms and Environment » Population and Ecological Adaptations

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Appeared in Year: 2009

MCQ▾

Question

Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of: - (CBSE)

Choices

Choice (4) Response

a.

Mesophytes

b.

Epiphytes

c.

Xerophytes

d.

Hydrophytes

Question number: 3461

» Ecology and Environment » Organisms and Environment » Population Attributes

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Appeared in Year: 2010

MCQ▾

Question

The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do a, b and c represent respectively?

Graph representation of response of organisms toabiotic factors

Graph Representation of Response of Organisms Toabiotic Factors

Graph representation of response of organisms to abiotic factors

(CBSE)

Choices

Choice (4) Response

a.

a - partial regulator, b - regulator, c - conformer

b.

a- regulator, b - partial regulator, c - conformer

c.

a - conformer, b - regulator, c - partial regulator

d.

a – regulator, b – conformer, c - partial regulator

Question number: 3462

» Ecology and Environment » Environmental Issues » Water Pollution and Its Control

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Appeared in Year: 2005

MCQ▾

Question

More than 70 % of world’s fresh water is contained in - (CBSE)

Choices

Choice (4) Response

a.

Polar ice

b.

Glaciers and Mountains

c.

Antarctica

d.

Greenland

Question number: 3463

» Ecology and Environment » Environmental Issues » Air Pollution and Its Control

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Appeared in Year: 2006

MCQ▾

Question

Photochemical smog pollution does not contain (CBSE)

Choices

Choice (4) Response

a.

Carbon dioxide

b.

PAN (peroxyacetyl nitrate)

c.

Ozone

d.

Nitrogen dioxide

Question number: 3464

» Ecology and Environment » Organisms and Environment » Population and Ecological Adaptations

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Appeared in Year: 2008

MCQ▾

Question

Consider the following statements concerning food chains: - (CBSE)

  1. Removal of 80 % tigers from an area resulted in greatly increased growth of vegetation
  2. Removal of most of the carnivores resulted in an increased population of deers.
  3. The length of food chains is generally limited to 3 - 4 trophic levels due to energy loss.
  4. The length of food chains may vary from 2 to 8 trophic levels.

Which two of the above statements are correct?

Choices

Choice (4) Response

a.

3,4

b.

2,3

c.

1,4

d.

1,2