Can you hear normally with a cochlear implant? The implant doesn’t make you hear normally again, but it can help you with sounds. Most people with severe to profound hearing loss can understand speech in person or over the phone better than they did with a hearing aid. It can usually help you know sounds […]
Are blue eyes a mutation?
Are blue eyes a mutation? People with blue eyes have a single, common ancestor, according to new research. A team of scientists has tracked down a genetic mutation that leads to blue eyes. The mutation affected the so-called OCA2 gene, which is involved in the production of melanin, the pigment that gives color to our […]
What type of transport does not require energy?
What type of transport does not require energy? Key terms Term Meaning Passive transport Type of transport that does not require energy to occur Concentration gradient A region of space over which the concentration of a substance changes Permeability The quality of a membrane that allows substances to pass through it What are the three […]
What is rounded to the nearest inch?
Who discovered M82?
Who discovered M82? Johann Elert Bode How was M82 discovered? As a member of the M81 group, M82 is 12 million light years distant. M82 was discovered on December 31, 1774 by Johann Elert Bode together with M81; he described it as a “nebulous patch”, about 0.75 deg away from M81, which “is very pale […]
Why do we need to protect ecosystems?
Why do we need to protect ecosystems? Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes. They are at the foundation of all civilisation and sustain our economies. How can we protect […]
Is deception of research participants ethical?
Is deception of research participants ethical? Deception research is an ethical dilemma in itself. Deception in research entails that participants are not fully informed of the purpose of the study. Valuable insight can also be obtained in this way into factors which would never be discovered if all factors and aspects were obvious to the […]
What temperature does quartz crack?
What temperature does quartz crack? Manufacturers market quartz as able to withstand temperatures up to 400 degrees Fahrenheit (one reason it works well as fireplace surrounds). But “thermal shock” can result from placing a hot pan straight from the oven or stovetop onto a cold quartz countertop, which can lead to cracking or discoloring. Can […]
When was the solar system formed?
What is the purpose of using charts and graphs?
What is the purpose of using charts and graphs? Graphs and charts are visuals that show relationships between data and are intended to display the data in a way that is easy to understand and remember. People often use graphs and charts to demonstrate trends, patterns and relationships between sets of data. What are the […]