Evolution
the process where organisms are best fit for there natural environment best meant to survive.
Natural Selection
This passive process moves molecules from areas of high concentration to low concentration without using energy
diffusion
this molecule carries hereditary instructions in nearly all living organisms
DNA
The part of the digestive system stores and concentrates bile
gallbladder
this term describes a group of organisms of the same species living in the same area
population
A random change in DNA
Mutation
A special type of diffusion involves water molecules moving across a selectively permeable membrane
osmosis
These molecules, made of a sugar phosphate, and nitrogen base, are the building blocks of DNA
nucleotides
these cells transmit electrical signals throughout the body
neurons
this term refers to all the living and nonliving things interacting in a area
ecosystem
A trait that increases a organisms chance of survival and reproduction in the area
adaptation
this type of transport does NOT require energy from the cell
passive transport
the shape that describes the DNA molecule
double helix
this gas is exhaled as a waste product of respiration
carbon dioxide
these organisms make their own food through photosynthesis
producers
This mechanism decreases differences between populations by introducing new alleys through interbreeding
gene flow
This organelle is responsible for producing ATP through cellar respiration
mitochondria
this kind of trait will only show if two alleles for it are present
recessive trait
this type of blood in the circulatory system helps fights infections
white blood cells
this term describes the role and position a species has in its environment
niche
this is the formation of a new species due to reproductive barriers, often after geographic separation.
speciation
this organelle is involved in the synthesis of proteins, which are then transported to the Golgi for modification and packing
Endoplasmic reticulum ER
process where DNA is copied into mRNA
transcription
this nervous system division controls involuntary actions like heartbeat
autonomic nervous system (ANS)
the progress by which ecosystems change and develop over time
succession