Advertisements
Advertisements
Question
Enlist any 'two' floral adaptations in salvia.
Solution
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
RELATED QUESTIONS
Give the floral adaptations for chiropterophily.
In which type of adaptation, forelimbs are modified into wings?
(a) Aquatic adaptations
(b) Volant adaptations
(c) Arboreal adaptations
(d) Cursorial adaptations
Cite an example where more than one adaptive radiations have occurred in an isolated geographical area. Name the type of evolution your example depicts and state why it is so named.
Describe one example of adaptive radiation.
Mention any four special adaptive evolved in parasites for their parasite mode of life.
What is adaptive radiation?
Humming birds and Hauk illustrate:
Parallelism is:
Examples of convergent evolution are
Tasmanian Wolf is a marsupial while Wolf is a placental mammal. This shows
