Biology, 11.03.2020 03:34, arielpraczko1
Dinosaur fossils are too old to be reliably dated using carbon-14, which has a half-life of about 5730 years. Suppose we had a 67 million year old dinosaur fossil. How much of the living dinosaur's 14C would be remaining today
Answers: 2
Biology, 22.06.2019 11:00, danielmartinez024m
1. which of the following transport mechanisms utilizes energy? a. osmosis b. diffusion c. facilitated diffusion d. endocytosis
Answers: 1
Biology, 22.06.2019 13:10, hcoulter15
Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.
Answers: 2
Biology, 22.06.2019 18:00, summerhumphries3
After a group of researchers conducts a new experiment that has never been conducted before, what is the best way for other scientists to make sure that the data is real
Answers: 2
Dinosaur fossils are too old to be reliably dated using carbon-14, which has a half-life of about 57...
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