STM 007: Gen Bio 1ST AT

• Biology - Study of life, living organisms, their origins, anatomy, morphology, physiology, behavior, and distribution.
• Bios - Meaning of Life
• Logos - Meaning of Study
• Living things - May be distinguished from non-living in their ability to carry on life processes.
• Divine Creation, Abiogenesis, Biogenesis, Catastrophism, Cosmozoic, Eternity of Life - 6 Major Theories about Origin of Life
• Theory - It is about facts and does not only explain facts, can be tested either true or false.
• Divine Creation Theory - Life on earth is created by a supernatural power, the God.

  -All living organisms are created on the same day.

  -Religious Beliefs

  -Objection to the theory of special creation.
• Theory of Evolution - Charles Darwin: Objection to Divine Creation
• Abiogenesis Theory - Assumes that non-living things material manner gives rises to life.

  -Fly larva develop on rotter meat.

  -Frogs, snakes, and crocodiles formed by mud.
• Biogenesis Theory - Theory of living things-can only come from other living things or pre-existing living things.
• Biotic - Living Things
• Abiotic - Non-Living Things
• Theory of Catastrophism - Developed by Georges Cuvier - assumes that life originated by creation and is followed by catastrophe due to geological disturbances.
• Theory of Eternity of Life- Life has no beginning nor end. Life has always existed or it is continous.

  -Also known as Steady State Theory
• Atom - Smallest scale, fundamental unit of matter.
• Molecules - Formed when atoms are combined.
• Molecules - Chemical structure consisting of 2 or more atoms. Can actually form organelles.
• Organelle - Structure that has specific function within the cell.
• Cell - Building blocks of all organisms. Structural and functional unit of life.
• Robert Hooke - First biologist who discovered Cells.
• Prokaryotic - Single-celled organisms that do not have membrane-bound organelles/
• Eukaryotic - Animals such as humans, plants, and some fungi.
• Tissue - Combination of cells, group of similar cells that work together to perform a specific function.
• Organ - Layer of tissues working together (performing a common function)

  -Kidneys, Lungs, Heart, Liver, and Brain
• Organ System - Group of organs that work together. Higher level of organization.
• Organisms - Living individual entities; living things.

  -Animals and Humans
• Populations - Organisms with specific living together within specific area.
• Community - Different species that live in the same specific area. Different living things that lives together.
• Ecosystem - Group of organisms having interaction or interrelationship with non living things.
• Biosphere - Highest level of organization represents the zone of life. Global sum of life.
• Cell Biology - Study of Cell
• Prokaryotes - No Nucleus

  -Bacterias
• Eukaryotes - It has nucleus, good nucleus.

  -Fungi, Animals, Plants.
• Hans and Zacharias Janssen - Invented the first so-called compund microscope. Put lens at the top and bottom of a tube and looked through it, magnified 3x to 10x.
• Rober Hooke - Used microscope to examine a thin slice of cork. Published Micrographia.
• Many Little Boxes - Robert Called the thin slices of cork as ____
• Anton Van Leeuwenhoek - Master microscope maker, enabling to magnify an obect aroung 200x to 300x to its original size.
• Animalcules - Anton Van Leeuwenhoek called the tiny creatures as ____
• Mattias Schleiden - Development of all vegetables tissues, cells were seeded by the nucleus. Basic unit of plant structure.
• Theodore Schwann - Believed that cell is the basic unit of animal structure.