Sensory cells in the human eye can detect changes in light. the information obtained from these sensory cells is transmitted to the brain through neurons, and the brain determines the correct behavioral response. for example, if the intensity of light being detected by a person's eye rapidly increases, the nervous system might transmit information to the eye that causes the eyelid to close and block out the light. this is an example of a behavioral response that a. requires communication between several individual organisms. b. is not influenced by an organism's environment. c. must be completed by a single cell. d. requires communication between cells and an organ system.

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?

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

Did the vinegar diffuse all the way to the center of any of the cubes? if so, which ones? what does this tell you about surface area-to-volume ratio and the diffusion rate?