Which groups of protists would you be most likely to find as fossils? Why?

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.

What type of plant is good for a bioassay and where can i buy it? i only have a month.