Tag: diversity in living things and their classification

• Vertebrates have a backbone with a spinal cord, whereas invertebrates do not.
  
• The diversity is exceptionally high among the invertebrates compared to vertebrates.
  
• Vertebrates are always bilaterally symmetrical, while invertebrates could show either bilateral or radial symmetry.
  
• Vertebrates are usually large-bodied and move fast compared to invertebrates.
• Vertebrates have a closed blood system, a well-developed brain, either gills or lungs for respiration, and a complex and sophisticated nervous system, whereas those are primitive in invertebrates. Therefore, it concerns that vertebrates have many specializations to extract the best out of the environment compared to invertebrates.
• Despite all these changes, someone could draw a point that invertebrates are more adaptive due to their simplicity, whereas vertebrates do not have good adaptability in comparison because of the specialization. However, I would like to quote a popular quote to finish that in evolution specialization paralyzes and ultra specialization kills the viability of taxons.

In the first year of a biennial plant, the plant typically develops its vegetative structures, including leaves, stems, and roots, to store energy. These structures allow the plant to survive the winter dormancy period before flowering in the second year.

Biennial are plants whose entire life cycle occurs within two years. In the first year, these plants are only vegetative, meaning that they don't produce reproductive structures. Rather, these plants will grow roots below ground and a small rosette of leaves near the surface

A. Cuscuta is a parasitic plant with smallest flowers many times. It blooms many times. so it is a polycarpic plant  

Vivipary is a condition where seeds germinate on the plant. Most of the food crops are annuals and seeds are consumed as food. Therefore, if seeds germinate on the plant they cannot be utilized as food nor can they be stored for the next season. So, the correct answer is 'The seeds cannot be stored under normal conditions for next season'

Plant materials include a wide and varied group of plant parts from many species. General categories of plant materials include grasses, rushes, barks, woods, gourds, stems, roots, seeds, and leaves. These materials can be used to construct baskets, netting, cordage, and even fabrics. Common production methods include felting, knitting, knotting, coiling, plaiting, and weaving. 

Stems can be modified to store food and survive unfavorable conditions as perennating organs, common examples being underground stem modifications like tubers (potato) and rhizomes (turmeric). Chrysanthemum and ginger also use underground stems, but potato and turmeric are classic textbook examples of tuber and rhizome modifications respectively.

Weak stemmed plants climb over the support are called twinners. They climb by the stem itself.