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Biology Biology Difficulty: Medium

Consider the following statements regarding the significance of mitosis and choose the correct answer: 1. The constant number of chromosomes in all the cells of the body is because of mitosis 2. Mitosis restores the surface-volume ratio of the cell 3. A cell can grow in size to a large extent without disturbing the ratio between the nucleus and the cytoplasm 4. Repair of the body takes place because of addition of cells by mitosis Nobel Prize winning scientist James D. Watson is known for his work in which area? Which one of them is a micro-molecule? The breakdown of glucose to pyruvic acid is called Consider the following statements regarding evolution and choose the correct answer: 1. The different divisions of algae have evolved from bacterial ancestors, probably from the members of autotrophic bacteria 2. The blue-green algae are the earliest plants known from the fossil record 3. The bryophytes have become differentiated into liverworts, hornworts and mosses which have further developed progressive types of plants 4. The earliest and primitive tracheophytes have succeeded in colonising the land