EASY
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In _____, the leaves are reduced to spines so that transpiration loss is checked and water is stored in the tissues of the stem.

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Important Questions on Organisms and Environment

EASY

Match the following:

  Set-I   Set-II
(A) Endosmosis (I) High altitude adaptation
(B) Exosmosis (II) Desert adaptation
(C) Metabolic water (III) Problem for fresh water animal
(D) Increase in the RBC production (IV) Problem for marine animals

The correct match is

HARD
What do you mean by volant adaptations in animals? What is patagia? 
EASY
Which of the following features of plants is not helpful in adapting to desert life?
MEDIUM

In A, B, C plants:
A-Plant grow in arid zone
B-Absorb more water during rainy season
C-Withstand prolonged dryness are

Answers respectively

HARD
Distinguish between Endothermic and poikilothermic animals.  What are osmoregulators?
HARD
Choose the incorrect statements.
(A) In mesophytes, unless the habitat is specialised no adaption is necessary.
(B) 'Warming' a British botanist classified plant communities as three ecological groups based on the dependence on water.
(C) Due to the flooding, in the destroyed lands the secondary succession occurs much faster.
(D) In hydrophytes, the multi-layered epidermis will be useful in absorbing only water from surroundings.
EASY
Select the incorrect anatomical adaptation of Xerophytes among the following?
HARD

Hydrilla and Limnophila are examples for the following categories respectively,

i) Free-floating hydrophyte and rooted hydrophyte with floating leaves

ii) Submerged, suspended hydrophyte

iii) An amphibious plant

iv) Submerged, suspended hydrophyte and a free-floating hydrophyte

v) Submerged, rooted hydrophyte and an amphibious plant

The correct combination is

EASY
Root does not help in the absorption of water in which of the following plant?
MEDIUM
Do all animals living in desert conditions show adaptations?
EASY

What special adaptations can be seen in the following organisms?

Camel

EASY
Firefly and fishes like Cuttlefish are active during day time only.