A unit of scientific classification that
comes after order but before genus in terms of biological
relationships.
Fertility
Ability to reproduce.
The process by which male and female sex
cells (gametes) unite to form a zygote or new individual.
The simplest form of asexual reproduction
that involves the division of a single organism into two compete
organisms.
A type of ecosystem generally described as a
large area of land covered with trees.
The remains of a plant or animal that lived
in the past.
A record of all known (past and present) fossils.
Form of genetic drift that occurs when allele
frequencies in a group of migrating individuals are, by pure
chance, significantly different than that of their population of
origin, and this group goes on to develop into a distinctly
different species. Also known as Founder's
Principle.
Fundamental Theorem of Natural Selection
A theorem developed by Sir Ronald A. Fisher
stating that the rate of evolution in a population increases with
greater genetic variability and decreases with lower genetic
variability.
Simple nongreen plants that lack chlorophyll,
the green matter that higher plants use to make food.
The thick growth of hair that covers the skin of many kinds of animals.