Introduction to Life Science Lesson 1 PDF

Summary

This document is a lesson on introduction to life science. The lesson covers concepts of life, theories regarding the origin of life, unifying themes, and different aspects related to the topic. It includes learning outcomes, lesson outlines, and biological systems. The document also explains the concept of cells and their interactions with their surroundings.

Full Transcript

-It stated that life was created by the wishes of a divine being or some supernatural power, the Creator or God. It is a theory where living organisms arise from non-living things.  In 1748, the English priest John Needham challenged Redi’s experiment. It was a com...

-It stated that life was created by the wishes of a divine being or some supernatural power, the Creator or God. It is a theory where living organisms arise from non-living things.  In 1748, the English priest John Needham challenged Redi’s experiment. It was a common knowledge at that time that boiling can kill microorganisms. living things always arise through the agency of preexisting organisms living things arise from inanimate sources 1. Biological Systems 2. Cellular Basis of Life 3. Form and Function 4. Reproduction and Inheritance 5. Intera ction with the Environment 6. Energy and Life 7. Regulation/ Homeostasis 8. Adaptation 9. Evolution 10. Biology and Society Living things work as a system, at the same time they cannot be separated from non-living things since they are both operating as a system. Cells are the basic unit of life, which denotes that all living things are composed of cells. Organism’s structures fit with its functions. Traits of parents are being passed from one generation to the next generation. Living things cannot live alone, their survival depends on how they interact with the environment. Autotrophs use light to perform the process photosynthesis, on the other hand, heterotrophs consume other organisms to obtain food. Cells of the body are surrounded by a small amount of fluid, and normal cell functions depend on the maintenance of cell’s fluid environment including temperature, volume, and chemical content. Living organisms survive depending on how one will adapt to its changing environment. The diversity of life arises by change leading to the present biodiversity that we see. The field of science is changing the lives of all organisms through research.

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