Briefly describe the six key properties that appear to be shared by most living organism on Earth.
Order: " Living organisms exhibit order in their internal structure "
Reproduction :organisms create more members of their species
Growth and Development : that organisms go through different stages in the coarse of their lifetime "determined at least in
What is natural selection? Summarize the logic by which Darwin came to
the "Inescapable conclusion" that evolution occurs by natural
selection. Describe some of the evidence that supports Darwin's theory
of evolution.
Natural selection is the idea that some hereditary traits eventually become
a dominant trait of the majority of the population these traits will be passed down into successive generations.Natural selection explains how species can change in what we might
Briefly describe each of the four main classes of cellular molecules:
carbohydrates, lipids, proteins, and nucleic acids. What are enzymes,
and where do they fit into this picture?
Carbohydrates are energy sources and structural components for life. Lipids(fats) are primarily a way to store energy. Proteins(type of enzyme) are complex organic molecules and fill a variety of rolls, from structures to catalysts. Nucleic acids are the
What is metabolism, and what are the two basic metabolic needs of any
organism? Explain the four metabolic classifications listed in Table
5.1
Metabolism is a term used to describe the myriad of chemical reactions necessary for life, with a view toward energy generation/usage and rebuilding/repairing of structural components. All organisms require a source of raw material, such as carbon, and a
Why is water so important to life on Earth? List the three major roles
that water plays in metabolism.
Water is critical to life on Earth because it plays three key roles in metabolism. These are (1) allowing organic chemicals necessary for life to float or be dissolved within cells, (2) a method to transport chemicals and waste to and from the cells, and
Natural selection is the name given to
the mechanism by which advantageous traits are
preferentially passed on from parents to offspring
An organism's heredity is encoded in
DNA
People belong to domain
eukarya