This diagram shows a cross section of rock layers with the fossils contained in each layer. What requence BEST represents how this area has changed over time?
A)ocean dry and
B)dry and ocean
C)ocean - dry land ocean
D)dry land oceandry and

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because

Male-patterned baldness is more common in males as the name suggest.why is this? a.the gene for baldness is on chromosome 5 b.the gene for baldness is on chromosome 1 c.the gene for baldness is on he x chromosome d.the gene for baldness is on the y chromosome