Biology some test idk

homologous structures

same structure different function

Analogous structures

different structure same function

artificial selectionn

humans select what traits they want (selective breeding) ex: horses breed with fast horses

common descent

all species including extinct came from a common ancestor

fossil record

record of history of life on earth.l

law of superposition

oldest layers at the bottom, youngest at top.

gradualism

slow steady change in the lineage of a species

punctuated equilibrium

the hypothesis that evolutionary development is marked by isolated episodes of rapid speciation between long periods of little or no change.

adaptive radiation

a species evolves into many different forms

coevolution

2 species evolve in response to each other

type of selection that acts against the average type

disruptive

type of selection that causes an increase in individuals at one end of the curve.

direction

type of selection that favors the average individual

stabilizing

provides protection for an organism by copying the appearance of another species

mimicry

allows a animal/plant to blend in with its surroundings

camoflague

the random change in the allele frequencies in a population (hint: think chance)

genetic drift

the _ states that allele frequency in a population will remain constant unless one or more factors changed causing those frequencies to change.

hardy Weinberg principle

speciation

process of forming new species

behavioral

populations have different mating rituals and behaviors

ex: light patterns of fireflys

temporal

populations reproduce at different times

geographic

populations are separated by geographic barriers (rivers, oceans, mountains etc)