biology chapter 1: key words Flashcards
all the parts of the planets that has livings things
Biosphere
Most regions of land , most bodies of water, the atmosphere to a altitude of several kilometers.
Things the biosphere includes
the community of living and non-living in a area
Ecosystem
Individual living things
Organisms
trees, plants, animals
Examples or organisms
They are in the soil breaking down the leaf little and other wastes
Microscopic organisms
Microscopic organisms are also called
Microorganisms
life’s basic unit of structure and function.
cells
Smaller structure in a cell
Nucleus
Basic building blocks of all materials both living and non-living
Atoms
Atoms bonded together
Molecule
chemical responsible for inheritance–the passing from parent organisms to their offspring
DNA
What contains instructions for a cell to make Molecule needed to function
DNA molecule
units of inherited information
Genes
Distinct form of life
Species
how many identified species are there?
more than 1.5 millon
there is approximately ____ species of Bacteria
5,000
there is approximately ____ species of birds
8,600