Human Bio Assessment one.
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atoms + atoms =
molecules
smallest functioning unit of an organism
cell
organ
composed of several tissue types
Organ system
group of organs that work together for a common purpose
Organism
collection of organ systems
Species
a group of interbreeding organisms
Population
the members of one species in a particular area
Community
interacting populations
Ecosystem
community of populations interacting with the physical environment
Biosphere
all of the Earth’s ecosystems
Energy
the capacity to do work - eating provides energy
Homeostasis
a constant internal environment
blood pH
7.35-7.45
Homeostasis would be impossible to maintain without
ability to respond to stimuli.
reproducing
passing on genetic material
growth
changes in size and/or number of cells
development
all changes from fertilization to death
Mutations
variations of genes
neutrons
neutral/uncharged particles
protons
positively charged
electrons
negative charge
compounds
molecules made up of different atoms
Ionic bond
attraction between + and - ions
Double covalent
share 2 pairs of electrons