any bipedal primate
a fossil found in rocks one time period
Index fossils are commonly found, widely distributed fossils that are limited in time span. They help in dating other fossils found in the same sedimentary layer. For example, if you find a fossil from an unknown era near a fossil from a known time, you can assume that the two species were from about the same time.
Movement of gametes causes gene flow, which is influenced by individuals moving into a population.
Individuals moving into a population
it prevents gene flow between populations
when the population is small apex answers
When there is a bottleneck - APEX
Allopatric Speciation (geographic isolation) can lead to the formation of a new species because the population is split in two smaller populations by a physical barrier (river, canyon, mountain...).
Random processes are not part of the theory of evolution by natural selection.
The United Nations .
It allows scientists to organize the fossil record.
Biodiversity makes the ecosystem more stable.
b. rana capito and rana clamitans
allele frequency does not change. Apex
Directional Selection - APEX
Large Males (apex)