Which statement best describes the purpose of Earth's spheres?
They work together as open systems to cycle matter through ecosystems.
They work independently as closed systems to cycle matter through ecosystems.
They work together as open systems to move matter to living and nonliving parts of Earth.
They work independently as closed systems to move nutrients to living and nonliving parts of Earth.
Answers: 2
Biology, 21.06.2019 20:00
What type of specimens where you able to see under each of the microscopes in the microscope activity
Answers: 1
Biology, 22.06.2019 03:30
What organelle other than the nucleus houses dna in a eukaryotic cell?
Answers: 1
Biology, 22.06.2019 06:50
How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes
Answers: 2
Which statement best describes the purpose of Earth's spheres?
They work together as open systems...
Chemistry, 05.10.2019 02:50
History, 05.10.2019 02:50
Mathematics, 05.10.2019 02:50
Mathematics, 05.10.2019 02:50
Chemistry, 05.10.2019 02:50
Mathematics, 05.10.2019 02:50
Biology, 05.10.2019 02:50
Biology, 05.10.2019 02:50
Mathematics, 05.10.2019 02:50