Dr. Joseph Goldberger observed that pellagra was not contagious like Infectious Diseases, as it did not spread through direct contact. He also noted that certain dietary factors, such as a lack of niacin and a diet high in corn, played a role in the development of pellagra. Additionally, through experiments on prisoners, he demonstrated that a balanced diet could prevent and cure pellagra.
A microscope can help a scientist observe and analyze small details or structures that are not visible to the naked eye, which can provide valuable data for research. By using a microscope, a scientist can make more accurate observations, collect reliable data, and draw conclusions based on evidence, all key components of the scientific methodology.
A population with a short generation time and large population size would allow scientists to most likely observe direct evidence of evolutionary change. This is because rapid reproduction and high genetic variation increase the chances of observing mutations and natural selection in action.
To observe tardigrades in their natural habitat, one can collect samples of moss, lichen, or soil from areas where tardigrades are known to live. These samples can then be placed under a microscope and searched for the tiny, water-dwelling tardigrades. It is important to handle the samples carefully and use proper microscopy techniques to avoid harming the tardigrades or their environment.
Yes, microbiology provides significant evidence of evolution through studies on microbial populations that demonstrate genetic changes and adaptation over time. Microorganisms such as bacteria and viruses show mutations, natural selection, and genetic transfer that support the principles of evolutionary theory. These findings contribute to our understanding of how species evolve and adapt to different environments.
To make slides of cheek cells for microscopy, you will need a microscope slide, cover slip, swab or toothpick to collect the cells, a staining solution (such as iodine), and a microscope with at least 400x magnification. You may also need a pipette or dropper to apply the staining solution.
Got better when diet changed
Got better when diet changed
Got better when diet changed
There is no scientific evidence to support the idea that the deceased can observe us from heaven. This belief is based on personal or religious beliefs rather than empirical evidence.
the scientists name was brown
quantitative data is the characteristics obtained from an experiment usually the best way to collect quantitative data is to observe your subject.
That is something that can only be seen by people who look for it (or observe the world, nature).
It was the Galapagos Islands
quantitative data is the characteristics obtained from an experiment usually the best way to collect quantitative data is to observe your subject.
It was Brown. They named it Brownian motion after her.
Observation in an experiment is used to collect data and evidence about the subject being studied. Researchers observe variables, behaviors, or outcomes to identify patterns, relationships, and effects resulting from experimental manipulations. This systematic observation helps validate hypotheses and draw conclusions, ensuring that findings are based on empirical evidence. Additionally, careful observation allows for adjustments in the experimental design if necessary.
Scientists collect data through experiments, where they manipulate variables and observe outcomes. They also use surveys to gather information through questionnaires or interviews. Another method is through observational studies, where researchers simply observe and record data without any manipulation.