3rd in the series of 3 blood type questions. a man with blood type a marries a woman with blood type b. many years later they both die suddenly, leaving a substantial estate but no will. four people turn up and claim to be the couple's children. one person is a, one b, one ab, and one o. none seem to know each other and each claims the others are frauds. because of your efforts one claimant is left (other than your employer). you notice the other claimant is brach (=has bracydactyly=short broad fingers = rare, dominant condition.) you can earn your fee and settle the case if you can show that . (only one answer for this question)

Sea levels are rising due to climate change while increasing numbers of people are moving into coastal areas. to accommodate more people, there has been increased construction of beachfront resorts and condominiums. how is this impacting sea turtle numbers and biodiversity and why? a. the increased human population in coastal areas has meant that more food is available to the turtles (e.g., dropped food, waste from restaurants), which has led to an increase in the numbers and diversity of sea turtles. b. there has been very little change in the numbers and biodiversity of sea turtles because the planet is so vast that they can simply relocate to less crowded beaches. c. this has resulted in a decrease in numbers and diversity of sea turtles because it is restricting available nesting sites, and hence reproduction. d. this has resulted in an increase in numbers and diversity of sea turtles because people are around to protect them from natural predators.

In which situations is the principle of cross-cutting relationship useful in determining relative age?

The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.