Flashcards in BiSci Chapter 1- January 28th Deck (41):
is the study of living organisms and their environments.
share common characteristics
-acquire materials and energy
-respond to stimuli
-reproduce and grow
-have an evolutionary history
join together to form molecules
make up a cell
is the smallest structural and functional unit of an organism.
is a small group of similar cells that perform a particular function.
made up several types of tissues
each organ belongs to this
a group of interbreeding organisms
all the members of one species in a particular area belong to this
interacting populations of the grasslands make up this
the community of populations interacts with the physical environment to form this
all the Earth`s ecosystems make up this
Levels of Biological Organization
describes all of the chemical reactions that occur within a cell
produces organic molecules, such as sugars, that serve as the basis of the food chain for many other organisms, including humans and all other animals.
the ability of a cell or an organism to maintain an internal environment that operates under specific conditions.
pass down their genetic info to the next generation
recognized by an increase in size and often the number of cells
indicates all the changes that occur from the time the egg is fertilized until death in humans
the info in the DNA
may cause minor variations in genes
is the process by which a population changes over time
each successive generation will include more members with the new variation
are animals that have a nerve cord protected by a vertebral column
encompasses human activities and products passed on fro one generation to the next outside of direct biological inheritance
the number of different species present in a given area
is the study of the material universe or physical reality in order to understand it
are concepts that tell us about the order and the patterns within the natural world (how the natural world is organized).
concepts supported by a broad range of observations, experiments, and data
The Principle of Evolution
the theory of evolution has been supported by so many observations and experiments for over a hundred years that it is referred to this term
The Scientific Method
given the placebo
given the real meds for experimentation
is the application of scientific knowledge to the interests of humans
Organ Systems Maintain Homeostasis
maintaining a stable internal environment even when the external environment changes
zone of air, land, and water at the surface of the Earth in which living organisms are found.
all organisms are composed of cells
organisms contain coded info that determines their form, function, and behavior