A biologist was studying two indigenous groups of people from different areas of the world. The first population was from equatorial Africa. The second population was from northern Europe.
The biologist was studying a gene that affects skin color. The biologist examined the gene in 100
people from each population. She kept track of how many different forms (or alleles) of the gene
she found in each population. The results are in the graph in Figure 1.
18
Number of Different
Alleles of the Gene
1.1
Population 1 Population 2
(equitorial (Northern
Africa) Europe)
11. Describe the major pattern in the data in Figure 1

Liquid water turns into water vapor at which step in the water cycle? a. precipitation o b. water run off c. evaporation d. condensation

For a to be healthy, it has to have lots of different kinds of plants and animals. all of the different types of plants and animals in an ecosystem. name four types of ecosystems from those listed in the video. b) c) d) most living things live here. all living things depend on how an ecosystem like a game of sticks? why should we build new buildings on existing land? name four extinct species from those listed in the video. b) c) d) the best way to wipe out a species is to the largest ecosystem in the world is this percent of the world is covered by water. how many of all species in the world live in the ocean? list five things you can do to increase biodiversity. b) c) d) e) how many species are we losing per hour?

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment