you must design a valid experiment to show that there are microorganisms in the air. what would be your dependent variable?
sterilized broth
growth of organisms in the broth
exposure to microorganisms in the air
you must design a valid experiment to show that there are microorganisms in the air. what would be your control group?
open flask with unsterilized broth
open flask with sterilized broth
sealed flask with unsterilized broth
sealed flask with sterilized broth
Answers: 3
Another question on Biology
Biology, 21.06.2019 13:30
Heat is the amount of heat required to change the temperature of 1 gram of a substance by 1°c, and it is related to the chemical composition of the substance.
Answers: 1
Biology, 22.06.2019 02:30
Plz ! having a smooth seeds is the dominant trait. having wrinkled seeds is a recessive trait. the offspring of two plants with smooth seeds, a. must have smooth seeds. b. may have smooth or wrinkled seeds. c. must have wrinkled seeds. d. have a 25% change of having smooth seeds.
Answers: 1
Biology, 22.06.2019 06:00
Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun
Answers: 1
Biology, 22.06.2019 10:30
Which of the following is a true statement? question 8 options: populations can't evolve, only individual organisms. individuals have adaptations that can change over time. individuals have traits that may or may not make them successful at reproduction. individuals evolve to have adaptations.
Answers: 1
You know the right answer?
you must design a valid experiment to show that there are microorganisms in the air. what would be y...
Questions
Mathematics, 10.01.2021 05:10
English, 10.01.2021 05:10
Mathematics, 10.01.2021 05:10
Mathematics, 10.01.2021 05:10
Social Studies, 10.01.2021 05:10
Physics, 10.01.2021 05:10
Mathematics, 10.01.2021 05:10
Mathematics, 10.01.2021 05:10
