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

Important Questions on Organisms and Environment
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 production | (IV) | Problem for marine animals |
The correct match is




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




(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.


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







What special adaptations can be seen in the following organisms?
Camel


Identify the picture given below:
