List in tabular form, two distinguishing features of dicot plants with monocot plants.
Monocots Dicots 1. Possess one cotyledon. Possess two cotyledons. 2. Fibrous roots Taproots. 3. Parallel venation. Reticulate venation.
What are mycoplasma?
Mycoplasmas are the smallest and the simplest organisms. They are prokaryotes having nucleoid. They have heterotrophic mode of nutrition and their body can change forms easily. They are also called…
What are phanerogams?
Phanerogams or spermatophyta are the most advanced type of plants bearing seeds. They have roots, stems, leaves and flowers. They include gymnosperms and angiosperms.
Describe the hierarchical system of classification currently followed.
Hierarchy of classification categories was established and designed by Linnaeus. Hierarchy of classification is a system of arrangement of a framework in order of logical sequence. The currently followed hierarchical…
Why was the method of classification of animals proposed by Aristotle not accepted?
Aristotle classified animals on the basis of their habitat, i.e., whether they live on land or in water. But these animals, otherwise are very different from each other in many…
What do you mean by characteristics’?
Characteristics means a particular form or a particular function of any organism. For example, the presence of five fingers on each hand of a human being is a characteristic.
In which phylum are pharyngeal gill slits present?
Phylum chordata
Why do birds possess hollow bones?
To make their body light in weight so as to make flying easier.
Why do amphibians do not possess exoskeleton?
Amphibians do not possess exoskeleton as their skin is thin, moist and act as a respiratory organ.
Name two phyla which have radial symmetry.
Echinodermata and coelenterata