Biology Questions and Answers
stage of these sexual life cycles meiosis
must occur.
- Why is the plant life cycle
known as alternation of
generations?
The plant life cycle is known as
alternation othis cycle there are two f generations bdifferent formsecause in (^)
of living beings that alternate each
other, one haploid and the other diploid.Alternation of generations is also called
the diplobionticand it does not occur cycle, or metagenesis,only in plants,
other living beings, like cnidarians,
present the cycle.
- For each of the three types
of life cycles what is the
respective ploidy of the
individual that represents the
adult or lasting form?
In the haplontic haplobionticthe single and lasting form is haploid. In life cycle (^)
the diplontic hadiploid. In the diplobionticplobiontic life cycle it is life cycle the (^)
lasting individual that alternates with
the intermediate fohaploid gametophyte (as in rm may bbryophytes)e the (^)
or the diploid sporophyte (as in
pteridophytes).
- Do plants present only
sexual reproduction?
There are asexual forms of reproduction
in plants. Sompieces of root, limbs or e naturally detachedleaves develop (^)
into another complete individual.
Artificialcan be obtain asexual reproduction oed by means of grafting orf plants (^)
cutting.
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