Advertisements
Advertisements
प्रश्न
Enlist any 'two' floral adaptations in salvia.
Advertisements
उत्तर
Floral adaptations in Salvia are as follows : (Lever Mechanism)
(1) Pollination in Salvia is entomophilous.
(2) The flower in Salvia is bisexual & protandrous.
(3) There are two stamens in the flower having long bifurcated connective.
(4) The upper branch of the connective bears a fertile anther lobe while the lower branch of the connective bears a sterile anther lobe.
(5) When an insect enters the Salvia flower, it pushes the lower sterile lobe owing to which the upper fertile lobe bends & strikes the back of the insect & dust its pollen grains.
(6) When the same insect visits another flower, the pollen grains are picked up by the receptive stigma & the pollination is effected.
APPEARS IN
संबंधित प्रश्न
How did Darwin explain adaptive radiation ? Give another example exhibiting adaptive radiation.
Mention any four special adaptive evolved in parasites for their parasite mode of life.
Give four adaptations in flowers pollinated by insects.
Humming birds and Hauk illustrate:
Parallelism is:
Adaptive radiation refers to ______
Examples of convergent evolution are
Tasmanian Wolf is a marsupial while Wolf is a placental mammal. This shows
Can we call human evolution as adaptive radiation?
Select the correct group/set of Australian Marsupials exhibiting adaptive radiation.
