MCQ
In ecotone which species become abundant?
- ASibling species
- BEndemic species
- CRare species
- DEdge species
Explanation:
Ecotone is the transition zone between two communities e.g., forest and grassland.
Ecotone has a mixture of species belonging to both the communities. Ecotone possesses higher number of species than either of two communities.
The increased number and even density of species in the region of ecotone or community border is called as the edge effect.
The species, which are found primarily or most abundantly or spend most of their time in ecotone are known as edge species.
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$I.$ It is controlled by multiple allele
$II.$ It shows codominance
$III.$ Codominance can be manifested phenotypically in human
$IV.$ It follows the Mendel law of inheritance
Which of the following statements (s) are correct?
$I$. To permit the use of genetically modified organisms and their product for commercial applications
$II$. To adopt the procedures for restriction, production and application of $GM$ organisms
$III$. approval to conduct large scale field trails and release of transgenic crops in the environment
Which of the statements are given above are correct?
| List $- I$ | List $- II$ |
| $(a)$ Allen's Rule | $(i)$ Kangaroo rat |
| $(b)$ Physiological adaptation | $(ii)$ Desert lizard |
| $(c)$ Behavioural adaptation | $(iii)$ Marine fish at depth |
| $(d)$ Biochemical adaptation | $(iv)$ Polar seal |
Choose the correct answer from the options given below.
$(a) -(b)- (c)- (d)$