THE SCOPE OF BIOLOGY CH 1 What defines a living thing? Slide 2
I. The Characteristics of Life There are 8 characteristics shared
by living things Slide 3 A. Universal Genetic code All organisms
store the info to grow, live, and reproduce in DNA DNA is passed
down to offspring during reproduction Slide 4 B. Cellular basis of
life Cell is basic unit of life All living things are made of cells
Slide 5 Levels of organization: celltissueorganorgan systemorganism
Tissue: a group of cells working together to perform a function
Organ: a group of tissues working together to perform a function
Organ system: a group of organs working together to perform a
function Slide 6 C. Grow and Develop All living things have a
pattern of growth and development In some organisms, cells
differentiate to perform particular functions Slide 7 D.
Reproduction and inheritance All living things reproduce and pass
traits on to offspring Asexual reproduction: offspring are
identical to parent. Sexual reproduction: offspring are genetically
different from parents Slide 8 E. Respond with environment All
living things detect stimuli and respond to them Slide 9 F. Obtain
and use energy All organisms obtain and use energy 2 ways to obtain
energy Producers (autotrophs) : consumers(heterotrophs): What do
organisms do with obtained energy (food): use it in cellular
respiration to get energy that the cell can use Slide 10 G.
Homeostasis Homeostasis: ability to maintain steady internal
conditions All organisms strive to maintain homeostasis Slide 11 H.
Evolution populations of living organisms have the capacity to
adapt to their environment and evolve Slide 12 II. Levels of
Biology A. Biosphere All parts of the earth inhabited by living
things The sum of all Earths ecosystems Slide 13 B. Ecosystem All
of the living and nonliving things in a particular area Biotic
factors: the living parts of an ecosystem Abiotic factors: the
nonliving parts of an ecosystem Slide 14 C. Organisms An individual
living thing Slide 15 D. Cells: basic unit of life Slide 16 E.
Genes and DNA: Hereditary information
