Insecta refers to insects belonging to the Insecta class in the Hemiptera. Entomologists classify them as true bugs. They are characterized by four legs, four legs, and hair. Now you're familiar with their physical appearance. But did you know that they also have other distinctive features?
Insects are invertebrates
Invertebrates include bugs, meaning that they can have both living parts and non-living ones. Insects have segmented bodies with chitin exoskeletons. The three major units of their body are the head, abdomen and thorax. These body segments are used by insects to extract nutrients from food. They use catabolic processes to digest their food. This breaks down complex macromolecules of sugar into simple sugars.
They are four-legged.
It is interesting to note that some insects only have four legs, but others have six or more. For instance, locusts have four legs and butterflies six. Insects use their front pairs for jumping.
They have gills
Most people know that certain insects have gills. Gills are a way for insects to breathe. They also allow them to see the surrounding environment. Most insects have many visual units. However, some species have complex eyes with hundreds of visual unit. Caterpillars, for example, have 12 sets of eyes and 30,000 ommatidia.
They have long hair
If you're into bugs, you should know that they have hair on their bodies. Insects are one of the most varied groups of animals. Their sheer number makes them fascinating to study. The role of insects in our environment is vital, as they are important for both human and non-entomologists. Here are some fascinating facts about bugs, including how they jump and what they eat.
They also produce methane
Methane is a greenhouse gas, which is released into the atmosphere by bugs, such as termites. These bugs produce methane in the intestines of their animals, and they are responsible to about 5 percent worldwide emissions. While methane naturally exists in the atmosphere each year, it is mainly produced by human activities. The biggest source of methane is from fossil fuel industries. This includes the production natural gas.
They have ommatidia
Insects are equipped with compound eyes, which consist of seven to 11 individual visual units. They can be used for many purposes. Some insects have a larger number of ommatidia than others. The wingless, silverfish, has only about 100, while the dragonfly is estimated to have around 30,000. The interesting thing about male insects is that they have more ommatidia then females. This makes them easily identifiable.
They have some of the most bizarre body parts
The most diverse group of organisms in the universe is insects. Not only do they contribute to the economies of many countries, but they are also fascinating to humans and non-entomologists. Did you know, for instance, that grasshoppers have ears attached to their abdomens? A grasshopper's hind legs are equipped with special organs to allow for jumping. The grasshopper can leap up to twice the length of an NBA court. And, in addition to their amazing body parts, they were the first creatures to make sound.
FAQ
What are 5 interesting facts about the liver?
The liver is responsible of breaking down toxins and storing nutrients. It also regulates blood pressure, and maintains our body's temperature.
We hear it all the time: "I feel sluggish today" or "my head feels heavy". These symptoms could be signs of liver problems.
Some common signs include dark urine, yellowing skin, fatigue, nausea, vomiting, loss of appetite, stomach cramps, jaundice (yellow coloration), and itching. These are not all the warning signs. If you experience any of them, make an appointment with your doctor immediately.
The liver plays a crucial role in our lives. It is vital for detoxification, metabolism, immunity, reproduction, and digestion.
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The average adult liver weighs 1,400g.
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The size of a baby's liver at birth is approximately half that of an adult. It becomes about four times more large by the age of three than an infant's liver.
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The liver is located below the ribs on the left-hand side of your abdomen.
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There are 16 major liver lobes. However there are many smaller, more intimate lobules.
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The liver contains about 10 million individual red blood cells.
Which is the most mysterious spot on Earth?
Antarctica is considered the most mysterious area on Earth.
We find this place so fascinating. Because it is unlike any place on Earth.
It is remote and difficult to reach. This site has more to it than meets your eye.
This natural wonder is also home to some of the strangest wildlife species.
Let's find out how this mysterious destination became so famous.
Antarctica: The South Pole
It is not known why Antarctica was called Antarctica. Some believe it refers to "land of ice". Others believe it comes from Greek mythology.
Antarktis is the name Antarktis was given to an island in ancient Greece by Zeus' twin brothers. One of the twins was said to have been born in winter. This is why the word "antarctic" was chosen.
Others believe the name was derived from the Greek words tropos, which means turn, and anti, meaning against. This would mean land turned away from the sun.
Whatever the reason, Antarctica has always held a special fascination for people.
It is the continent with the lowest, windiest and highest temperatures. It is too cold to support trees, plants, and animals.
Yet, life is abundant in this frozen wilderness.
About 90 percent of all living things on Earth live here. There are about 50% of the world's animal, plant and plant species.
What is Antarctica? Here, water freezes into ice instead of evaporating into the air.
This causes large amounts of ice to float above ground.
These floating glaciers cover over 80%. They are growing in size every year.
The Antarctic ice sheet has grown 60ft since 1960.
If the melting goes on, the sea level may rise by as much as 200 feet. That could cause massive flooding around the globe.
Not everyone believes this is bad news. Some scientists think global warming might be beneficial. They believe that global warming will lead to melting ice sheets faster and floods that can flush toxic chemicals out of our soils and bodies.
Others warn that this theory sounds like something out of a science-fiction movie.
What is the most interesting fact about the human body?
We have two eyes, two ears, two nostrils, four limbs, a mouth, a nose, and a penis. Yes, more than 50 parts to our bodies. But one thing is missing. A heart.
The heart is a pump which circulates blood throughout the body. The blood moves through the arteries and veins to transport oxygen and nutrients into the cells, and remove carbon dioxide.
Each minute, the heart pumps approximately 5 liters. This amount is equivalent to an adult drinking 2-3 cups of coffee daily.
The blood flows throughout the heart 24/7, 365 days a calendar. While you sleep, your heart beats almost 100 times per minute.
The color of someone's skin can tell if they are healthy or not. You can see tiny blood vessels, called capillaries, when you look closely at the skin. These vessels carry blood back to the heart from the large blood vessels beneath the skin. If blood flow is blocked, skin can turn blue or purple.
People suffering from sickle cell disease have no red blood cells. Their blood becomes sticky and hardens, causing them to become very ill.
To stop bleeding from a cut, you can apply a bandage to the wound. Blood must flow in order for the wound to heal properly. Doctors will insert a needle under the skin to access the vein near the injury. This allows blood flow to the area that has been injured.
Doctors also insert tubes (catheters) into the artery near the site where the blood clot forms. This keeps patients alive until the clot has broken up naturally.
How does your brain control your body's functions?
The brain relays messages to other parts of the body to ensure their functionality. The brain controls everything that happens in your body. It tells both your stomach and lungs what to do; it also controls your legs and arms.
Your brain is made of billions, or neurons, of nerve cells. Action potentials are electrical signals that neurons send to one another. Every neuron has a cell wall around its nucleus. Inside the membrane are channels that allow ions such as sodium and potassium to enter and leave the cell. Ion movement creates the electric charge that causes the neuron to fire.
When a neuron is activated, neurotransmitters release chemicals into the space between it and the next neuron. Neurotransmitters attach to the receptors of the second neuron and open ions channels for ions to pass in and out. As a result, second neuron fires as well.
When another neuron sends an impulse to the presynaptic neural cell, neurotransmitter is released. The impulse travels along the synapse connecting the two neurons. The transmitter binds directly to the receptors in the postsynaptic nervous neuron, and triggers the firing.
Communication within the nervous system is possible thanks to neurotransmitters. They coordinate activity between the different parts of your brain.
Statistics
- The average human adult male heart rate is between 70 and 72 beats per minute, while the average for adult women is between 78 and 82 beats, which is significantly faster, according to 2014 published in the Journal of Clinical and Diagnostic Research. (romper.com)
- A 2012 paper published in the Proceedings of the National Academy of Sciences reported that people blink about 15 to 20 times each minute, meaning, if you do the math, you spend about 10% of the time that you're awake blinking. (romper.com)
- It might not sound like something that's truly plausible — and it is quite rare — but according to a 2015 study published in the Asian Cardiovascular & Thoracic Annals, it's possible to hurt yourself and even break a rib just by sneezing. (romper.com)
- You spend about 10% of your time awake blinking (romper.com)
- Your mouth makes a lot of saliva every day It might seem like way too much, but your salivary glands typically produce anywhere from 0.5 and 1.5 liters a day, according to a 2009 study published in the Journal of Medicine and Life. (romper.com)
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Hollywood scandals that shocked the world
Nothing is more shocking that seeing someone be famous for their wrong reasons. But there's also nothing worse than seeing them fall from grace.
The best thing about watching how an industry reacts when it makes mistakes is the best part. We have all heard of celebrities who overdosed on drugs and alcohol. Some even died young because of it.
The worst thing is when these stars are made public about their problems and shunned. That's where we found ourselves last week.
After a long and successful career, Heath Ledger finally succumbed to his demons. He overdosed on prescription pills, and after a brief battle with death, he passed away.
His family and friends were unable to accept his death, and the media was quick to criticize him.
Heath was once one of the most gifted actors currently working. He was nominated for two Academy Awards for his performance in Brokeback Mountain.
In addition to acting, Heath also wrote and directed films, including A Knight's Tale, Monster's Ball, and Iron Man 3.
Hollywood loved Heath, however he soon grew too big for his good looks. He began using drugs and drinking heavily. He ended up in rehab and became clean.
He wanted to make amends now that he was sober. He made a documentary called "Room 237," that chronicled the making and release of The Shining. It was supposed to be released this year, but now it won't hit theaters until next year.
Heath attempted to get into Hollywood every time. In fact, he was actually twice arrested for drug-related charges.
We don't believe Heath should have been allowed to go back into the entertainment industry. However, it would be nice if he could get some help before things spiral out of control.
We hope Heath's story will serve as a warning to others who may think they can still have everything.