eyesaresostrainedbecausemostofusblinkless whenwestareatourdigitaldevices.Soifeyestrainistheissue,blue-light-blockingglassesare probablyoflittleuse. 8.Whatdoweknowaboutbluelight? A.Itisakindofnuclearradiation. BIthastheshortestwavelength. C.Itmaycomefromelectronicdevices. D.Itconsumesagreatdealofenergy. 9....
What does the “bacteria” mean? A. very small living things that may cause disease B. something helpful to our health C. a substance that we do not need to pay attention to D. something that we do not know yet 点击查看答案手机看题 你可能感兴趣的试题 多项选择题 青春期意外怀孕...
“We are of two different kinds,” the older waiter said. He was now dressed to go home. “It is not only a question of youth and confidence although those things are very beautiful. Each night I am reluctant to close up because there may be someone who needs the cafe.”“Hombre, ...
Name & explain 2 advantages humans have against pathogenic bacteria. List several ways in which microbes affect the lives of humans. What is one of the great advantages bacilli have over other spore-forming bacteria? What are natural killer cells and what role do they play in the immune system...
Bacteria are microscopic single-celled organisms that can be helpful, such as those that live in our guts, or harmful, such as flesh-eating bacteria.
Probioticsare live bacteria and yeasts that are good for you, especially yourdigestive system. We usually think of these as germs that cause diseases. But your body is full of bacteria, both good and bad. Probiotics are often called "good" or "helpful" bacteria because they help keep your ...
Phone germs are no joke, but you can help your relative stay sanitized with simplehuman's cleanstation. It sanitizes 99.9% of the phone's surface in just 30 seconds and would make a great addition to their entryway table as a result. This high-tech bacteria buster is fully worth the sp...
Black hairy tongue is often caused by an overgrowth of papillae (taste buds) on the tongue. It results in a dark, furry appearance of dead skin cells on the surface of the tongue that can be stained from bacteria, food, or tobacco. Although it may be unpleasant, it doesn't usually req...
Eating disorders are serious mental disorders that should be diagnosed by an eating disorder therapist or specialist. The first step in getting a diagnosis is to visit your doctor. They will perform a physical exam and ask you about your eating behaviors. Then, they will likely refer you to ...
Smooth surface decay.This type of decay occurs on the outside flat surface of the teeth when bacteria is not removed and plaque builds up. It’s the least serious kind and may be treatable with fluoride. It’s also helpful to know that this type of decay may be positively impacted by ...