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What are some answers to common life science questions?

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Quick Answer

A request for details on the process of photosynthesis, for example, reveals that plant cells use sunlight and carbon dioxide to produce glucose and oxygen. Defining the term "evolution" is another common inquiry. A relevant answer describes evolution as the process of an organism adapting to its environment over time.

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Full Answer

Life Science is a broad category that encompasses all subjects relating to the study of living organisms. In the United States, the term is most often used for the general study for grades K-8. Advanced students are more likely to study the Life Sciences as individual disciplines, such as Biology, Ecology or Botany.

The main components of living organisms are based on the element carbon and are referred to as organic compounds. All living organisms are composed of one or more cells, and all cells are derived from other cells. Cells are divided into two categories based on the presence of a nucleus. Eukaryotic cells in plants or animals have a nucleus and prokariotic cells in bacteria do not. Plants are generally categorized as vascular or non-vascular, based on the tissue that transports water and nutrients to the cells. Vascular plants have roots, stems and leaves, while non-vascular plants like mosses do not.

The study of animals is referred to as Zoology and the study of plants is referred to as Botany. Living organisms interact with each other through ecosystems, and the study of this is known as Ecology. All living organisms grow and reproduce. Reproduction is either asexual (one parent) or sexual (two parents). Deoxyribonucleic acid, abbreviated as DNA, is the material that stores genetic information in living organisms. These topics are covered under the study of Biology. A comprehensive list of topics with links to information is found on the teaching website at Ck12.org.

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