science Flashcards
The hardened remains or imprint of a living thing that lived long ago.
Fossil
An animal in its earliest stages of development, especially before it hatches or, in mammals, before it has reached a distinctly recognizable form. A plant in its earliest stages of development, especially the partially developed plant contained within a seed.
Embryo
A taxonomic category of closely related organisms that are very similar to each other and are usually capable of producing fertile offspring when they breed with each other.
Species
Similar in structure and evolutionary origin, though not necessarily in function.
Homologous Structure
Structures that are similar in function but having different evolutionary origins.
Analogous Structure
sandstone, limestone, and shale
Sedimentary Rock
All of the physical, chemical, and biological conditions that together affect an organism and influence its growth and development. Soil, air, water, climate, plant and animal life, and noise level are all components of an environment.
Environment
A group of individuals or organisms all living at approximately the same time. The time span between the birth of the parents and that of the offspring.
Generation
All of the organisms of a species that live in a particular area.
Population
one organism and is also one type of organism
Individual
Capable of being passed from one generation to the next through the genes.
Heritable
A physical or behavioral feature of an organism, especially one that is determined largely by the organism’s genes.
Trait
The process in nature by which organisms that are better adapted to their environment tend to survive longer and produce more offspring than organisms that are less well adapted, so that the genetic characteristics of the better-adapted individuals become more widespread in later generations.
Natural Sesction
To produce offspring.
Reproduce
The continuation of life or existence.
Survival
