Ms. Garcia's science students are studying scale models. For her science project, Sarah has decided to make a scale model of the solar system. Sarah conducted some research to help her with the diameters of the planets and Sun in her model and found the table you see above. According to Sarah's research which planet is the smallest and which is the largest? A)
smallest - Mars, largest - Earth
B)
smallest - Venus: largest - Saturn
smallest - Mercury: largest - Jupiter
D)
smallest - Mercury, largest - Venus

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

Amylase becomes denatured at a temperature of 80°c. during an experiment to study the effect of varyingtemperature on enzyme activity, amylase’s reactivity with starch was measured at body temperature (37°c), andthen again at an increased temperature of 42°c. how would this increase in temperature affect the experiment

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?