The process of keeping the internal environment of the body stable by responding to changes in the external environment is known as homeostasis. Which of the following accurately describes a mechanism for maintaining homeostasis at the cellular level?

Passive transport, where ATP is used to facilitate the movement of molecules from
high to low concentrations.

Facilitated transport, where enzymes are used to increase the rate of solvent transfer
across a membrane.

Active transport, where the solution is pumped across a membrane to from high to
low concentrations.

Active transport, where molecules are pumped across the cell membrane against the
gradient from low to high concentration.

If you were given a map of the sensory cortex in the postcentral gyrus of the cerebrum, do you think the map would have more “space” devoted to the regions of the body that have the highest density of sensory receptors, or the regions of the body that have the lowest density of sensory receptors? explain

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 abo controlling alleles could kim give her child