Give reason:
a) Banana plant reproduces by Vegetative Reproduction.
b) The organisms formed by asexual reproduction are identical to their
parents.
c) More complex organisms cannot give rise to new individuals through
regeneration.
d) Variation is essential and beneficial to a species.
e) Plants have low energy needs as compared to animals.
Answers
a) The banana has a reduced underground stem, called the rhizome, which bears several buds. Each of these buds sprouts and forms its own pseudostem and a new bulbous rhizome.
b) clone refers to a group of genetically identical organisms. Crossing over during meiosis and random fertilization of male and female gametes add genetic diversity to sexually reproducing organisms. Asexual reproduction skips meiosis and fertilization of male and female gametes and therefore, produces genetically identical progeny i.e. clone by single parent cell
c) In case of the complex organisms have organ system level organization. all the organ systems of their body work together as an interconnected unit.
The tissues in complex organisms cannot regenerate a new individual as they are highly differentiated to perform specialized functions. For example, human skin cannot regenerate into a new individual as it is a highly differentiated tissue performing a designed function
d) The variation is important and beneficial for species as it allows a species to adapt to a changing environment. ... Only those who adopt the changes can survive in harsher conditions by adapting to the changes. For an individual, the variation doesn't matter in most of the conditions.
e)Plants do not need to move from one place to another. Movements in a plant are usually at the cellular level and hence a far less amount of energy is required by plants. Animals, on the other hand, need to move from one place to another; in search of food. So, the energy need of animals is pretty higher than of plants.
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