ch 1 Flashcards
biodiversity
the difference in the organisms that make up the biosphere
biosphere
all living things and all the places they are found make up the biosphere
species
One definition of species is a particular type of living things that can reproduce by interbreeding among themselves
biology
the study of all living things on earth
organism
any individual living thing
cell
basic unit of life
metabolism
the build up or break down of materials
deoxyribonucleic
the genetic material found in all living things
system
a group of individual parts that work together to form a whole
ecosystem
is a physical environment with different species that interact with one another and with nonliving things
homeostasis
the constant temperature internally in a living organism
evolution
evolution is a change in the genetic makeup of a subgroup, or population, of a species
adaptation
An inherited trait that gives an advantage to individual organisms and is passed on to future generations
observation
using our senses to study the world
data
observations that can be recorded and analyzed
hypothosis
a proposed answer for a scientific question
independent variable
the part of an experiment that can be manipulated or changed by the scientist
dependent variable
the part of the experiment that depends upon the manipulation in the independent variable
consant
the part in the experiment that does not change
theory
an explanation that is composed of a wide range of observations experiments and data
microscope
a machine that provides an enlarged picture of something
gene
a segment of DNA that stores genetic information
molecular genetics
The study and manipulation of DNA on a molecular level
genomics
The study and comparison of genomes both within and across specimens