Scientists

Ancient Greek philosopher Pythagoras is often credited with first proposing the idea of a spherical Earth around 500 BC, based on observations of the shape of the Earth's shadow during a lunar eclipse.

Gregor Mendel, known as the "father of genetics," conducted experiments on pea plants in the 19th century that laid the foundation for the principles of heredity. Barbara McClintock's work on maize genetics led to the discovery of transposable elements, revealing the dynamic nature of genetic material. James Watson and Francis Crick proposed the double helix structure of DNA based on Rosalind Franklin's X-ray diffraction data, revolutionizing our understanding of genetic information storage.

Scientists believe that plants evolved on land from green algae, specifically from a group called charophytes. This transition from water to land occurred around 450 million years ago during the Ordovician period.

Unlike religion, science need objective and strong evidence before giving credit to a theory as explanation of something. And anything that has been proven "true" can always be proven wrong by any other new theory which fits better or simoly be proven wrong.

Pig blood is used to create Photofrin because it contains hemoglobin, a light-absorbing molecule that is key to the treatment's mechanism of action. Hemoglobin absorbs light at specific wavelengths, which allows for the targeted destruction of cancer cells when the Photofrin is activated by light during photodynamic therapy.

Scientists believe that plants evolved from aquatic environments, such as algae and seaweed, which eventually adapted to life on land. The transition from water to land allowed plants to develop mechanisms to absorb water and nutrients from the soil, protect themselves from drying out, and reproduce without the need for water for fertilization. This evolutionary process enabled plants to diversify and become an essential part of terrestrial ecosystems.

Robert Hooke was born on July 18, 1635, and passed away on March 3, 1703.

Yes, optical telescopes are specifically designed to study visible light radiated from stars. They collect and focus visible light from stars to provide detailed images and spectra, allowing astronomers to analyze the properties of stars such as temperature, composition, and motion.

Drill cores from the ocean floor were dated and found to be very young compared to the age of the earth. This means the crust had to be formed recently, which can be explained by creation of crust at a spreading center.

A scientist studying plants is called a botanist.

After Fleming's invention of penicillin, his life changed in significant ways as he became a renowned scientist and was awarded the Nobel Prize in Physiology or Medicine in 1945. He also became known as the "father of antibiotics" and his discovery revolutionized medicine, saving countless lives. Fleming's work continued to have a lasting impact on the field of antibiotics and pharmaceuticals.

Robert Hooke did not include viruses in his observations because viruses were not discovered until the late 19th century when advancements in microscopy allowed scientists to see them. Hooke's work in the 17th century focused mainly on plant cells and microscopic structures in living organisms.

Applied studies involve the practical application of theories and knowledge to solve real-world problems. These studies focus on addressing specific issues in various fields such as education, business, or health, by implementing interventions based on research findings to bring about positive change or improvement. Ultimately, applied studies aim to bridge the gap between theory and practice for the betterment of society.

Alexander Fleming's maternal grandparents were Hugh Morton and Mary Morton. His paternal grandparents were Hugh Fleming and Grace Stirling.

Scientists refer to similar structures as homologous structures. These are traits that are shared between different species due to common ancestry, even if their functions may have evolved differently over time.

Black Smokers are the hot thermal vents in the ocean floor that support life that depends on oxidants other than Oxygen. Some organisms use heat, methane, and sulfur compounds to make energy through chemosynthesis. Other creatures use these organisms for food.

Alexander Fleming discovered the antibiotic properties of penicillin in 1928. This marked the beginning of modern antibiotic therapy, revolutionizing the treatment of bacterial infections and saving countless lives. Fleming's discovery paved the way for the development of numerous other antibiotics.

Yes, the two-kingdom system proposed by Aristotle was based on observable characteristics like mobility. Today's classification system, following the work of Linnaeus and expanded by modern taxonomy, is based on evolutionary relationships and genetic similarities, providing a more accurate representation of the diversity and relationships among living organisms, and helping scientists understand their origins and evolutionary history more effectively.

Scientists use structural characteristics to classify living things because these traits provide valuable information about an organism's evolutionary relationships, behavior, and function. By examining these physical features, scientists can group organisms with similar characteristics together, aiding in our understanding of biodiversity and the natural world.

The idea was only rejected initially (along with continental drift, where it originated), because there was no explanation as to why/how the continents would have split up and drifted apart from the super continent Pangaea. This was of course before it was discovered that continents "float" on magma that spreads out in opposite directions at fissures in the earth's mantle.

At the moment we don't really know if this will happen or not and we would have to wait and see but i think that scientists will be able as they can grow new heart valves so they probably will be able to grow new organs using stem cells because the organs do form when a baby is born so that's probably what scientists will try to do just copy the method and then they should be able to do it.

Hope it helped it's my science homework! LOL :)

Thomas Henry Mcclintock, a medical doctor,and Sara Handy Mcclintock.

Louis Pasteur disproved the theory of spontaneous generation by showing that microorganisms do not spontaneously appear in boiled broth when the broth is kept sterile in a flask with an S-shaped neck that prevents outside air and microorganisms from entering. This experiment demonstrated that microorganisms come from preexisting microorganisms, not from non-living matter.

People admire Alexander Fleming for his discovery of penicillin, the world's first antibiotic. This breakthrough revolutionized medicine by allowing for the effective treatment of bacterial infections, saving countless lives. Fleming's work paved the way for the development of modern antibiotics and greatly improved public health.

Alexander Fleming became interested in science after seeing the medical difficulties and suffering caused by infections during his time working as a doctor in World War I. This experience motivated him to pursue research in bacteriology and find ways to combat harmful bacteria. Fleming's observations and experiments ultimately led to the discovery of penicillin, the first antibiotic, which revolutionized medicine.