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Midterm review A

Review of chapters 1-5

The number of individuals of a single species per unit area population density
scientific study of human populations demography
average year after year conditions climate
trapping heat energy and maintaining temperature greenhouse effect
individual,population,community,ecosystem,biome,biosphere how organisms range in complexity
individual related to others like it species
one who eats producers consumers
process to use the sun to provide nourishment for plants photosynthesis
the main source for all life the sun
an acidic soluiton pH below 7
Four groups of organic compounds carbohydrates, lipids, proteins and nucleic acids
living things use this for their main source of energy carbohydrates
These organic compounds control the rate of reactions, build tissue and transport materials to help fight disease proteins
Chemical reactions always involve this in reactants breaking of bonds
chemical reactants always involve this in products forming new bondscells use these to speed u
cells use these to speed up chemical reactions enzymes
the goal of science to observe and study nature
the theory that life arises from non-living spontaneous generation
the smallest unit of life cell
the study of life biology
reproduction involving only one parent asexual reproduction
a much tested hypothesis theory
an idea to be tested hypothesis
How many variables should be changed at one time when testing a hypothesis? one
Living things share characteristics such as growth and development and maiintaining an internal stability
Created by: vickiPA