SCIENCE Which of the following is an example of a glacial formation?
A. Photosynthesis
B. Methane degradation
C. Photolysis
D. Weathering of rocks

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical? a. some people consider embryos to possess rights equal to those of fully developed human beings. b. extracting stem cells from embryos is a very energy-intensive process, which consumes resources that could be used elsewhere. c. embryos are difficult to obtain, so the monetary cost of using them for research outweighs their benefit. d. the process of extracting stem cells from embryos generates biohazardous waste that cannot be safely disposed of.

How did the average and range of beak size differ between birds that survived the drought and birds that dies?

Which statement correctly describes why the dna synthesis is discontinuous on one template strand while continuous on the other? (select all that apply.) a. it is due to the semiconservative nature of dna replication. b. it is due to the nature of the dna polymerase which can only add new nucleotide at the 3' end. c. it is due to difficulty in unwinding the dna template for replication. d. it is due to antiparallel nature of the dna molecule. e. it is due to the fact that the dna polymerase is not active enough.