Written paper to be handed in
level 4
in a well-organized essay, describe how cell division and cell differentiation work together to
allow a fertilized egg to grow into adulthood. include specific examples from the evidence
collected in class to support your claim.

Which of the following is not a type of epithelial cell

Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.

This is the nitrogenous base only found in rna