Identify a combination of ecological adaptations in xerophytes.
I. Cuticle is totally absent.
I. Hypostomatous and sunken stomata in some plants.
III. Root caps are usually absent.
IV. Well developed root caps.
The correct pair is
Important Questions on Ecological Adaptations, Succession and Ecological Services
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
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
(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
Reason (R): To enhance transpiration in desert plants
Represent the union of two sets by Venn diagram for each of the following.
is a prime number between and
is an odd number between and
