Ruby-throated hummingbirds are migratory birds that spend the summer in Canada and the northern United States and the winter in Mexico and Central America. Since all ruby-throated hummingbirds migrate at around the same time each year, many populations that were possibly isolated during the winter intermingle during the summer breeding season. This annual migratory behavior results in a transfer of genetic information from one population to another, which is known as . A. natural selection B. genetic drift C. gene flow D. speciation
Answers: 3
Biology, 22.06.2019 05:20
Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean
Answers: 2
Biology, 22.06.2019 09:00
Which two criteria must be met before scientist can use radiocarbon dating? explain your answer
Answers: 3
Biology, 22.06.2019 09:30
Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit
Answers: 1
Ruby-throated hummingbirds are migratory birds that spend the summer in Canada and the northern Unit...
Mathematics, 14.12.2019 02:31
Social Studies, 14.12.2019 02:31
Mathematics, 14.12.2019 02:31
Mathematics, 14.12.2019 02:31
Mathematics, 14.12.2019 02:31
Mathematics, 14.12.2019 02:31
Chemistry, 14.12.2019 02:31
Mathematics, 14.12.2019 02:31
Health, 14.12.2019 02:31
English, 14.12.2019 02:31