The statement "Today people with very short sight can wear glasses with thinner lenses because the lenses do not need to be so powerful" is true.
Yes, this statement is true. People with very short sight (myopia) require corrective lenses that are concave in shape to help focus distant objects properly on the retina. The power of the lens is determined by the degree of myopia – the more nearsighted a person is, the stronger the prescription needed.
Advancements in lens manufacturing and design have allowed for the creation of high-index lenses. These lenses are able to bend light more efficiently than traditional lenses, meaning that they can achieve the required optical correction with less material. As a result, people with high prescriptions, whether for nearsightedness or other vision issues, can wear glasses with thinner and lighter lenses while maintaining the necessary corrective power. This has greatly improved comfort and aesthetics for individuals who require strong corrective lenses.
Learn more about lenses at:
#SPJ3
Answer:
true
Explanation:
A biologist has found an organism she cannot identify while doing a census in a swamp. The best characteristic to look for in order to decide whether this organism should be classifies as a protist or as a plant is….
Answer: B) If it is unicellular, it is a protist.
Although there are single celled archaea and fungi.
I hope it helps, Regards.
Answer:
The organism is classified as protist or plant based on whether is single celled or multicellular and whether it makes its own food.
Explanation:
Both, protists and plants are eukaryotic meaning that these have nucleus in their cells and organelles bound by membrane. Unlike plants which may be multicellular, protists are single celled. Hence, a botanist must investigate to find if the cells are multicellular or not.
Another important feature is that if the botanists finds that the organism produces its own food, then it is a plant. As plants get their own food by combining the sunlight captured with carbon dioxide from the air through process called photosynthesis.