Question 1 (Multiple Choice Worth 7 points) (03.01 MC)
The diagram below shows the layers of a rock having an ammonite:
Rock
Organism Key
Armonie
口六
Which statement about the rock fossils is true?
O Fossil Y is older than fossil X
O Fossil Z is younger than fossil Y.
Fossil Z existed over many periods of time.
Fossil Y existed during the same period as the ammonite.

How did the miller-urey experiment impact the way scientists think about the origins of life? use what you know about the miller-urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes