Chapter One

Key Terms:
Biosphere: consists of all the environments on Earth that support life.
Ecosystem: consists of all the organisms living in a particular area
Organism: an individual living thing.
Organ System: consists of several organs that work together in performing specific functions.
Organs: part of the organ system that has a specific purpose.
Tissues: Makes up the organs and are just cells combined together.
Cell: Makes up tissue and are formed by molecules and atoms.
Organelle: a membrane-bound structure that performs a specific function in a cell.
Molecule: a cluster of atoms held together by chemical bonds.
Producers: Provides the food for a typical ecotsystem such as a tree.
Consumers: Eat Plants and otehr animals.
Prokayotic Cell: much simpler and usually small than a eukaryotic cell; Microorganisms like bacteria are prokaryotic.
Eukaryotic Cell: is subdivided by internal membranes into many different functional compartments, or organelles, including the nucleus that houses the cell's DNA.

Reading Journal:
1)What are living organisms made of? Living organisms are made of molecultes
2)What is the Hierarchary of life? It starts with biosphere, ecosystem, community, population, organism, organ system, organ, tissue, cell, organelle, then molecules. It starts with the largest, stepping down the the smallest.
3)What is Evolution and Natural Selection? Charles Darwin created the Theory of Evolution and Natural Selection. Evolution explains that species living today are descendnts of ancestral species. Natural Selection is an editing mechanism that occurs when populations of organism, have been exposed to enviroments, they inherit variations to accomadate.

Five Facts
1) The Chemical basis for all life's kinship is DNA as genetic material.
2) protists are a diverse collection of mostly single-celled organisms
3) A hypothesis is a proposed explanation for a set of observations.
4) A cell is the basic unit of life. It is also the lowest level of the Hierarchy of life.
5) Ecosystems are characterized by the cycling of chemical nutrients from the atmosphere and soil to producers to consumers to decomposers and backt o the enviroment.

The Heirarchy of life starts with the biosphere, ecosystem, community, population, organism, organ system, organ, tissue, cell, organelle, and the molecule. Bioshphere consists of all the enviroments on Earth. A molecule is a cluster of atoms held together by chemical bonds. DNA, for example, provides information and a blueprint to begin constructing organisms, then pass off from parent to offspring. There are three domains: domain Bacteria, Archaea, and Eukarya. Domains Bacteria and Archaea consists of prokaryotes and Domain Eukarya includes various protist kingdoms.
Scientists use mainly two approaches to science; discovery science, and hyposthesis-based science. Discovery science concerns itself mostly with describing nature. it can lead to important conclusions based on inductive reasoning. Hypothesis-Based sciences concerns itself with explaining nature; it involves proposing and testing a hypothesis. Hypothesis based science use deductive reasoning logic to come up with ways to test hypotheses. Most research combines these two forms of approach.

This is an example of the Heirarchy of life. It starts with an atom to turn into a molecule, to turn into organelles, etc. All the way until it
it is a living organism. This only demonstrates up until an organism. After, it is much broader.











Video Link:
http://www.youtube.com/watch?v=O3CZFfyed3M