Answer:
The gametes are haploid, having half the number of cells as compared to somatic cells. The gametes or s#x cells produced by the organism will have 6 chromosomes if the organism has 12 chromosomes.
The following are the characteristics of Cnidaria:
1. The organisms have specialized stinging cells known as cnidocytes.
2. Two types of body plans exist, that is, polyp and medusa.
3. The phenomenon of alternation of generation is observed.
The following are the characteristics of Porifera:
1. The organisms lack symmetry.
2. The adult forms are sessile.
3. The organisms obtain food by filtering water.
Answer:
Efficiency is the percentage of energy actually used to perform the work.
Photosynthesis will result in gain of energy in an ecosystem.
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