Answers: 3
Biology, 21.06.2019 18:30, smelcher3900
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 3
Biology, 22.06.2019 10:30, nonjabulomabaso7423
Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. the continental crust is lighter and less dense than oceanic crust. continental crust's density is approximately 2.7 grams per cubic centimeter. oceanic crust is thinner and the average density is about 3.3 cubic centimeters. when the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. once the oceanic crust subjects, the rocks are subjected to changes in heat and pressure. because of this, we would expect to find rocks in the area of a subduction. a) clastic b) igneous c) metamorphic d) sedimentary
Answers: 2
Biology, 22.06.2019 11:00, josegalvan123jg69
When ash and dust begin to settle on the ground, they eventually become compacted by
Answers: 1
Complete the statement below with the correct term. ___issues are global issues that deal with human...
Mathematics, 28.04.2021 17:00
Mathematics, 28.04.2021 17:00
Mathematics, 28.04.2021 17:00
Mathematics, 28.04.2021 17:00
Biology, 28.04.2021 17:00
Mathematics, 28.04.2021 17:00