Scientist discover the preserved remains of a woolly mammoth and want to determine its age well examining a sample from the bones the scientist discover the specie man is composed of 6.25% carbon 14 carbon 14 has half life of 5730 years how old is the woolly mammoth?

Which is the graph of the piecewise function f(x)? f(x) = image for option 1 image for option 2 image for option 3 image for option 4

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed