process by which organisms maintain a relatively stable internal environment
Homeostasis
Trisomy 21
down syndrome, extra chromosome 21
Chemistry of living things
Biochemistry
Biotic means
living
what is the basic unit of life?
Cells
Control center of the cell
Nucleus
Mitosis makes what kind of cells?
diploid cells
The theory that evolution occurs slowly but steadily
Gradualism
An organism that makes its own food
Autotroph
The scientific name of an organism
genus and species
What makes ribosomes
Makes proteins
Phenotype
An organism's physical appearance, or visible traits.
Speciation is?
Formation of new species
A group of individuals that belong to the same species and live in the same area
Population
The shared ancestor of new, different species that arose from one population
common ancestor
Conversion of light energy from the sun into chemical energy.
Photosynthesis
genetic variation in meiosis
crossing over and independent assortment is
A decrease in the genetic variety within a population due to a reduction in its size.
bottleneck effect
deforestation
the action of clearing a wide area of trees.
developed binomial nomenclature
Carolus Linnaeus
A tiny, nonliving particle that invades and then reproduces inside a living cell.
Virus
the formation of proteins by using information contained in DNA and carried by mRNA
protein synthesis
study of embryos and their development
Embrylogy
An organism's particular role in an ecosystem, or how it makes its living.
Niche
A change in an organism's surroundings that causes the organism to react
Stimulus