Doctor Kryskowski: The autosomal dominant mode of inheritance and symptoms found in the patients from this family indicate that they suffer
from Marfan syndrome. It is an inherited disorder caused by mutations
in the FBN1 gene. What is the most feasible (easiest, cheapest, most
reliable) way to investigate if this is the correct diagnosis?

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?