The photograph below shows a canyon in northern Artzona. Canyon walls
Which of these describes how this canyon was most likely formed?
Floods eroded the sandstone away from the canyon walls.
G Glaciers eroded the canyon rock as they melted and moved.
MIce wedged into cracks in the rock and weathered the canyon walls.
3 Wind blew large rocks that smashed against the canyon walls.

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

Models are non-visual ways of coummincating how someone thinks about something in the natural world

Approximately 90% of all cases of polycystic kidney disease are inherited in an autosomal dominant fashion. the disease is typically related to mutations to genes (pkd1 and pkd2). pkd genes can be found on chromosome 16. the disease occurs in approximately 1: 800 to 1: 1000 people. here is a hypothetical example. the dominant allele d will cause the development of pkd. the recessive allele is known as d. what genotypes would correspond to suffering from pkd? dd, dd what genotypes would correspond to being normal (not suffering from pkd)? dd consider that 1: 1,000 people have pkd in your population of 325million. consider that pkd is inherited in an autosomal dominant fashion. show you math for all of the following questions: what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is p? what is q? how many people in your population would have pkd?