Vocab Week 3

Ecosystems such as rivers, oceans, and streams are classified as _________________________ ecosystems

Scientists look for _______________________, or repeated processes, and seek to explain them

Common traits seen among different species, such as a streamlined shape or ability to fly is an example of _____________________ evolution

Natural Selection benefits those species that have the ability to blend into their environment, also known as ____________________________

Gene flow is the movement of alleles into a new population. This can introduce new alleles into the ____________________ of a population.

Homologous structures are an example of ___________________ evolution. The same structures that branch out to different species

The ability to use __________________________ can help scientists identify the age of fossils by looking at this elements half life (or how long it takes for half of the element to break down).

The theory that all characteristics can be explained by competition

Burning to ashes

Ecosystems such as ponds, puddles, and lakes