Complete the following sentences by choosing the appropriate words from the brackets:
(Inheritance , sexual reproduction, asexual reproduction, chromosome, DNA, gene)
Chromosomes are mainly made up of ……

Complete the following sentences by choosing the appropriate words from the brackets: (Inheritance , sexual reproduction, asexual reproduction, chromosome, DNA, gene) The component which is in the nuclei of cells and carries the hereditary charcterstics is called....

Complete the following sentences by choosing the appropriate words from the brackets: (Inheritance , sexual reproduction, asexual reproduction, chromosome, DNA, gene) Organisms produced by ………show minor variations.

Complete the following sentences by choosing the appropriate words from the brackets: (Inheritance , sexual reproduction, asexual reproduction, chromosome, DNA, gene) Organisms produced through…..show major variations.

Complete the following sentences by choosing the appropriate words from the brackets: (Inheritance , sexual reproduction, asexual reproduction, chromosome, DNA, gene) Hereditary characters are transferred from parents to off spring by ……here they are said to be structural and functional units of heredity.

Complete the paragraph by choosing the appropriate words given in the , bracket : (Lungs. heart, carcinogenic, nervous, intoxicating, hazardous, addictions, peer-group) The children fall into the trap of .......... either due to ............. pressure or due to false symbol of high standard living. Sometimes they try to imitate their elders. The addictive substances are............ and they cause long term effects. Some are temporarily ............ substances obtained from the plants. While some of the chemical ingredients in them can permanently damage the human ............ system, muscular system, ............, etc. Some tobacco like substances are ........... in action especially on the mouth and.............

complete the paragraph by choosing the appropriate words given in the brackets : (external, inhalation, alveolar, breathing, resptration, exhalation) Release of energy from the assimilated food is called .......... Inhalation and exhalation is called ................. When.............. is done, air enters the lungs. The oxygen from this air enters the blood while carbon dioxide from the blood exits from the blood, Through .................. CO_2 is given out. This gaseous exchange occurs through ......... membrane. This is called................ respiration. The RBCs carry oxygen to every cell.

Complete the paragraph by choosing the appropriate words given in the brackets: (capability, Rehabilitation, commodities, Human, objectives, normalcy) The ............. of disaster management comprise of the following aspects. ............. life is saved from the disasters. People are helped to move away from the place of disasters. They are given essential ............ by the government so that the gravity of disaster is reduced. The disaster conditions are brought back to ............. . ............... Of the affected and displaced victims is done. Moreover, protective measures for future are also planned to develop ............... among the people to face any possible disasters in future.

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. Ry 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.

Complete the paragraph Fill in the blanks by selecting the correct word from the bracket and complete the given paragraph. (adenine, phosphoric acid, centromeres, cytosine, nucleotides, ribonucleic acid, guanine, thymine) In 1953, Watson and Crick produced a model of the DNA molecule. As per this model, each strand in the molecule of DNA is made up of many small molecules known as _________. There are four types of nitrogenous bases adenine, guanine, cytosine and thymine_________and __________are called as ‘purines’ while _________and_________ are called ‘pyrimidines’. In the structure of the nucleotide, a molecule of a nitrogenous base and _________are each joined to a molecule of sugar.