Biology, 24.11.2019 23:31 Conner4600
Calcium-47, which decays by beta emission, has a half-life of 4.5days: how many milligrams of an initial 24mg of calcium-47 remain after 36days?
how many days are required for 9.60mg of calcium-47 to decay to 1.2mg?
Answers: 3
Biology, 21.06.2019 22:20
Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat.o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat.habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.
Answers: 2
Biology, 22.06.2019 01:30
The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?
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Biology, 22.06.2019 15:00
The sea slug that considered to be a photosyntheesizing animal
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Biology, 22.06.2019 16:20
Select the correct answer. which statement applies only to the axial skeleton, not the appendicular skeleton? a. it contains a pivot joint. b. it has muscles attached that work in pairs. c. it contains red bone marrow. d. it possesses fossa for bone articulation. e. it protects the heart and lungs.
Answers: 2
Calcium-47, which decays by beta emission, has a half-life of 4.5days: how many milligrams of an ini...
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