In 2005, the United States had a population of approximately 295,000,000 people. If the birth rate was 13 births for every 1,000 people, approximately how many births occurred in the United States in 2005?

#Question id: 4704

#Section 2: Evolution

About thirteen different species of finches inhabit the Galápagos Islands today, all descendants of a common ancestor from the South American mainland that arrived a few million years ago. Genetically, there are four distinct lineages, but the thirteen species are currently classified among three genera. The first lineage to diverge from the ancestral lineage was the warbler finch (genus Certhidea). Next to diverge was the vegetarian finch (genus Camarhynchus), followed by five tree finch species (also in genus Camarhynchus) and six ground finch species (genus Geospiza). If the six ground finch species have evolved most recently, then which of these is the most logical prediction?

#Question id: 15716

#Section 2: Evolution

#Question id: 4633

#Section 2: Evolution

Natural selection is based on all of the following except

#Question id: 4634

#Section 2: Evolution

Which of the following represents an idea that Darwin learned from the writings of Thomas Malthus?

#Question id: 4632

#Section 2: Evolution

Which of these conditions should completely prevent the occurrence of natural selection in a population over time?

#Question id: 4635

#Section 2: Evolution

Which statement about natural selection is most correct?