A geologist studies a layered rock to determine its age. Bacteria fossils from the Precambrian Age are found in the rock's upper layers, but no fossils are found in the rock's bottom layers
Which of these conclusions about the rock is best supported by the evidence?
The age of the entire rock is equal to the age of the fossils.
O The rock formed quickly through a series of rapid changes.
O The top layers of the rock are much older than its bottom layers
The bottom layers of the rock could have formed before life occurred

Which best describes what you will do in the reaching your academic potential course?

Tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d

Select all the correct answers. which statements fail to meet the requirements of a scientific claim? a). in the final 100 meters of a 10,000-meter race, an athlete's speed is more strongly related to anaerobic efficiency than to aerobic efficiency. b). flowers that reflect the most ultraviolet light are more likely to attract bees and other pollinators than flowers that reflect less ultraviolet light. c). the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today. d). even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true.