Which isotope is used to date ancient remains?
es
A)
carbon-14
B)
hydrogen-...
Biology, 19.11.2020 01:40 ashiteru123
Which isotope is used to date ancient remains?
es
A)
carbon-14
B)
hydrogen-3
lead-205
D)
uranium-238
Answers: 2
Biology, 22.06.2019 01:20
Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.
Answers: 1
Biology, 22.06.2019 02:00
Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d
Answers: 1
Biology, 22.06.2019 03:00
1. watermelon, papaya, oranges, bananas, and lemons are included in this food group. vitamin c 2. you need 6 or more servings of this food group each day vitamins d and a 3. found in fruit and keeps blood vessels healthy calcium 4. vitamins found in milk bread and grain 5. a mineral that strengthens bones fruit
Answers: 3
Biology, 22.06.2019 06:30
Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?
Answers: 3
History, 04.11.2020 02:40
Mathematics, 04.11.2020 02:40
Mathematics, 04.11.2020 02:40
Mathematics, 04.11.2020 02:40
Geography, 04.11.2020 02:40
Chemistry, 04.11.2020 02:40
Mathematics, 04.11.2020 02:40
Mathematics, 04.11.2020 02:40
Biology, 04.11.2020 02:40
English, 04.11.2020 02:40
Computers and Technology, 04.11.2020 02:40