If a single mutation turned off the growth of some pairs of legs within an organism what's most likely affected?
a. a deleted gene
b. a hox gene
c. a substituted gene
d. a duplicated gene

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false