Biology, 27.11.2019 19:31 purpletart41
Selection bias occurs when the population has been divided into strata portions of the population are excluded from the consideration for the sample cluster sampling is used instead of stratified random sampling those responding to a survey or poll differ systematically from the nonrespondents
Answers: 3
Biology, 22.06.2019 20:30
Strands of genetic material floating in the nucleus are referred to as
Answers: 1
Biology, 22.06.2019 21:00
Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form
Answers: 2
Biology, 23.06.2019 00:30
Biology students used raw eggs in an experiment on tonicity and osmosis. the students put their eggs into vinegar to remove the shells. the vinegar was used to remove the shell from the raw egg. what other effect(s) did the vinegar have on the egg?
Answers: 1
Selection bias occurs when the population has been divided into strata portions of the population a...
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