()using the punnett square diagrams, answer the following questions:

(a) in which generation are the parents purebred?

(b) in which generation are the parents hybrids?

(c) explain how you made your determination.

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

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.