Sowhen we feel 2 or angry, our heart can send moreblood to the face and the pigments in the skin becomered. This is 3 we have the expression that someonesees red" when he is angry.Plants also have pigments. The bright colors offlowers catch the 4 of insects(昆虫), which thencarry ...
Black, tarry poop with an unusually bad smell is often a sign that you have bleeding in your esophagus, stomach, or the top part of your small intestine. The blood turns black and tarry when it's digested in your gastrointestinal tract. If you have bleeding lower in your digestive tract,...
Why does the blood of deep sea divers look greenish-black in underwater photographs taken with natural light, but red when flashbulbs are used? Why would a laser dot sight become bigger the farther away its pointed? Explain why Why is water appears cyan at the seashore while wave caps appea...
Should I be concerned if my urine is bright yellow during pregnancy? No, unless you are experiencing symptoms like blood in your urine, pain in your lower abdomen, or frequent urination. Can energy drinks cause bright yellow urine? Yes! Energy drinks typically contain B vitamins and riboflavin...
Blood is fluid-like substances that carry oxygen and dissolved nutrients to all parts of the body. The blood cells are divided into three types namely, red blood cells (RBC), white blood cells (WBC), and platelets. The liquid blood cell knows as plasma cells that are ...
It's no wonder Rudolph the red-nosed reindeer is the most famous member of Santa's team. In addition to being a skilled flyer, his nose — as his name suggests — glows bright red. This unusual variation on the reindeer nasal prominence has all kinds of benefits, the most important, of...
Is there a poisonous worm? Deep underground inside a toxic cave filled with poisonous sulphur gas in Colorado, scientists have identified a new species ofcave worm. This new worm, blood-red in colour, never sees the light of day – but it thrives in a dank, hostile atmosphere that would ...
Lots of women ask me if ovulation is the only time that spotting is normal? Or can someone spot the day of or the day before her period and be okay? Premenstrual spotting for 1 to 2 days before your period begins is no big deal; this blood is often darker red or brown because it’...
Red colour is used as a sign of danger due to its longest wavelength and lesser deviation (scattering). Therefore, it can reach to a longer distance.
Why are blood vessels blue? Why is it necessary to adjust the amount of light after changing objective lenses? Why is it helpful for a microscope to be parfocal? Why must the specimen observed be very thin under a microscope? Why do we see swirls of color and dark spot right before the...