HEL
Calcium-41 has a half-life of 80,000 years. At the end of 240,000 years,
how much Calcium...
Biology, 03.03.2021 19:50 estermartinez
HEL
Calcium-41 has a half-life of 80,000 years. At the end of 240,000 years,
how much Calcium-41 would remain in a sample initially containing 60
micrograms? *
A 7.5 micrograms
B 60 micrograms
C 15 micrograms
D 30 micrograms
Answers: 1
Biology, 21.06.2019 20:00
!if we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have? a) the number of producers would increase. b)the number of decomposers would increase. c)the number of primary consumers would increase. d)the numbers of primary consumers would decrease.
Answers: 1
Biology, 22.06.2019 07:00
What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material
Answers: 1
Biology, 22.06.2019 10:00
Number and variety of living organism; includes genetic, species, and ecological types
Answers: 1
Biology, 22.06.2019 13:20
Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down
Answers: 1
Mathematics, 13.07.2019 23:00
Mathematics, 13.07.2019 23:00
Chemistry, 13.07.2019 23:00
Mathematics, 13.07.2019 23:00
Mathematics, 13.07.2019 23:00
Business, 13.07.2019 23:00