Related InterviewSolutions

• Complete the paragraph by choosing the appropriate words given in the brackets:(Linnaeus, Dobzhansky, Carl Woese, Theophrastus, Artificial method, Aristotle, Natural system, Traditional system)Time to time, different scientists have tried to classify the animals. Greek philosopher ………… was the first to perform the animal classification.Aristotle classified the animals, according to the criteria like body size, habits and habitats. Classification proposed by Aristotle is known as ………… Besides Aristotle, artificial method of classification was followed by ……….., Pliny, John Ray and ……….. Later on,’………… of classification’ was followed. Natural system of classification was based on various other criteria. By the time, system of classification based on evolution was also brought into practice. It was used by …………. and Meyer. Recently, ……….. has also proposed the animal classification.
• Write short note on:Coelom.
• Write short note on:Notochord.
• Write short note on:Germinal layers.
• Observe the figure and answer the following questions.(a) To which phylum these organisms belong? (b) Name the substance with which their body is covered.(c) Name their organs of locomotion.
• To which phylum does Cockroach belong? Justify your answer with scientific reasons.
• (a) Identify the animal given here.(b) Write the phylum to which it belongs. (c) Identify the pointed parts; p, q, r and s.
• Observe the figures given below and answer the given questions:(a) In which phylum are these animals included?(b) Which substance forms the outer layer of their exoskeleton?(c) What are their locomotory organs?
• Why has it been said that only insects directly compete with humans for food?
• What types of benefit and harm occur to human from animals of phylum-Arthropoda?