What should be added to blood as a preservative in case of fluoride poisoning?
a.
sodium fluoride
b.
sodium citrate
c.
potassium oxalate
d.
heparin

class- forensic science

*will mark brainliest for first correct answer* which of the following is most likely to affect the biodiversity of a park ecosystem? a. less rain than usual for several months b. ongoing pollution from a nearby factory c. park rangers plant a new type of tree d. disease wipes out an entire population

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

How water is moving through the ecosystem ?