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Scientists

This category is for questions about the people who apply the scientific method to solve problems, introduce new concepts, and strive to explain the natural world.

9,527 Questions

Is Alexander Fleming alive?

No, Alexander Fleming passed away on March 11, 1955. He was a Scottish scientist known for discovering the antibiotic properties of penicillin.

Which famous scientist discovered penicillium notatum?

Alexander Fleming is credited with the discovery of penicillium notatum in 1928. He observed its antibacterial properties and its potential for use as an antibiotic, leading to the development of penicillin.

Is it true fluorescent dyes help scientist see the movement of compounds and structures in living cells?

Yes, fluorescent dyes are often used in biological research to label specific molecules or structures in living cells. When exposed to light of a specific wavelength, these dyes emit light of a different color, making it easier for scientists to track the movement and interactions of the labeled components within the cells.

What is a sand scientist called?

A scientist that studies sand is also known as a geologist. Geologists study the composition of sand to determine what factors were involved in its creation.

Which black scientists known as the plant wizardwas a great pioneer in southern agriculture?

George Washington Carver, also known as the "plant wizard," was a renowned Black scientist and inventor. He made significant contributions to agricultural science in the southern United States by developing innovative farming techniques and promoting the cultivation of alternative crops like peanuts and sweet potatoes to improve soil quality and crop diversity. Carver's work helped to address the economic challenges faced by farmers in the region and improve the sustainability of agriculture.

What does the Golgi apparatus do to cell?

The Golgi apparatus serves the cell by modifying, sorting, and packaging molecules which have been synthesized by the cell to secrete them. The Golgi apparatus also distributes proteins and lipids. throughout the cell.

How did scientists know that cells existed?

There was a person who seen them and then created the cell theory then saying ot was a cell: Cell meaning a building block of life, which when the young man created it, he called it a tiny sqaure structure holding life.

How do scientists think the continents?

Scientists think that the continents were once part of a supercontinent called Pangaea that started breaking apart about 200 million years ago through the process of plate tectonics. This movement of the Earth's crustal plates continues to this day, causing the continents to drift apart.

How pasteur's experiment supported the cell theory and failed to support the theory to spontaneous generation?

Louis Pasteur's experiment with the swan-necked flasks demonstrated that microorganisms in the air could contaminate the broth only if they were given access, proving that spontaneous generation of microorganisms did not occur. This supported the cell theory by showing that cells only arise from pre-existing cells, not from non-living matter.

What are scientists of living things?

the science of living things is called biology,and a sciencentist who studies living things is known as a biologist.biologist study all kinds of life,from plants and animals to microorganisms,ecology,extinct or endangerd speinies,and more.

Which scientist was pivotal in making some type of discovery that led to your understanding of the basic nature of cells?

Theodor Schwann, a German scientist, was pivotal in discovering that cells are the basic building blocks of all living organisms. This finding, known as the cell theory, along with the contributions of other scientists like Robert Hooke and Matthias Schleiden, laid the foundation for our understanding of the basic nature of cells.

What are scientists that study genetics called?

Scientists who study genetics are called geneticists. They specialize in the field of genetics, which involves the study of genes, heredity, and genetic variations.

What two kingdoms do scientists divide bacteria in to?

Scientists divide bacteria into two kingdoms: Bacteria (also known as Eubacteria) and Archaea. These two kingdoms are based on differences in their genetic and biochemical makeup.

How does the scientist determine what antibiotic is suitable?

Scientists determine which antibiotic is suitable based on the bacteria causing the infection, its sensitivity to specific antibiotics, and the patient's health condition. This is done through laboratory tests such as culture and sensitivity testing to determine the most effective antibiotic for treating the infection.

Why is it difficult for some scientists to classify some living organism?

Some organisms may have unique characteristics that don't fit neatly into existing classification systems, leading to confusion or debate among scientists. Additionally, advancements in molecular biology have revealed new information about relationships between organisms that may challenge traditional classification schemes. Finally, some organisms exhibit a high degree of variability, making it hard to determine their place within a specific taxonomic group.

Why do scientists now use DNA to classify organisms rather than there features?

Scientists now use DNA to classify organisms because it provides more accurate and reliable information about the evolutionary relationships between different species. DNA analysis allows for a more precise classification based on genetic similarities, which can be more informative than physical characteristics. Additionally, DNA analysis is less subjective compared to evaluating external features, making it a more standardized approach to classification.

What might happen if all scientists did not use the same classification system to describe living things?

Using different classification systems would create confusion and hinder communication between scientists. Consistency in classification is essential for researchers to understand and build upon each other's work. It would also make it challenging to accurately compare and analyze data across different studies and disciplines.

What are sme questions scientists still have about endosymbiosis?

Some questions scientists still have about endosymbiosis include understanding the specific mechanisms by which endosymbiotic relationships are established and maintained, unraveling the evolutionary history of these relationships, and determining the extent to which endosymbiosis has contributed to the diversity and complexity of life on Earth. Additionally, researchers are also interested in investigating how endosymbiosis may have played a role in major evolutionary transitions.

What scientist studies the ground?

A geologist studies the ground, including its composition, structure, and processes that shape it such as erosion and sedimentation. Geologists also investigate the history of the Earth based on rock formations and fossils found in the ground.

What scientist is responsible for boyle's law?

Boyle's law is named after the scientist Robert Boyle, an Irish natural philosopher, chemist, physicist, and inventor. He discovered the relationship between the pressure and volume of a gas at constant temperature.

When do scientists think that life started?

Scientists currently think that life got started between 3.8 and 3.5 billion years ago, probably less than a billion year after the formation of the Earth. It is certain that life existed by 2.7 billion years ago.

Who would most likely study the causes of a present-day epidemic?

Epidemiologists would study the causes of a present-day epidemic. They investigate the patterns and causes of diseases in populations to help prevent and control outbreaks.

What convinced scientists that light is a particle?

The photoelectric effect experiment conducted by Albert Einstein in 1905 provided strong evidence that light behaved like particles, later termed photons. This experiment demonstrated that light could transfer energy in discrete packets, or quanta, rather than as a continuous wave. Subsequent experiments, such as Compton scattering, further confirmed the particle-like behavior of light.

How do scientists monitor water pollution?

Scientists monitor water pollution by collecting water samples and analyzing them for various pollutants, such as chemicals, heavy metals, and microbial contaminants. They also use devices like sensors and data loggers to continuously monitor water quality parameters such as temperature, pH, dissolved oxygen, and turbidity. Satellite imagery and remote sensing technologies are also used to assess water pollution on a larger scale.

How do you prevent wind erosion in a dry sandy area?

To prevent wind erosion in a dry sandy area, you can plant vegetation like grasses or shrubs to stabilize the soil with their roots. Additionally, using mulch or covering the soil with a physical barrier like sand fences can help reduce wind erosion by providing protection. Implementing proper irrigation techniques to keep the soil damp can also prevent erosion in these areas.