The perihelion is the point at which earth is closest to the sun, and the aphelion is the point at which earth is farthest away. based on this information, which statement is true? a. earth moves faster along its orbit during perihelion because of the sun's gravitational force. b. perihelion marks the beginning of summer, when earth is closest to the sun. c. the longest day of the year occurs during perihelion due to a lunar eclipse. d. the moon rotates faster during perihelion because of earth's gravitational force.

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?

What are positive impacts of algae? how is it used?

What kinds of foods are high in lipids?