Insecta (or bug) is a class of insects in the Hemiptera. They are classified as true bugs by entomologists. They have four legs, hair, and gills. Now you're familiar with their physical appearance. But did you know that they also have other distinctive features?
Insects make up invertebrates
Invertebrates are bugs that have both living and nonliving parts. Insects are segmented and have chitin-based exoskeletons. The main parts of their bodies are divided into the abdomen, head, and thorax. These body parts are used to extract nutrients. Catabolic reactions are used to digest food. They break down complex macromolecules into simple sugars, and then amino acids.
They are four-legged.
It is fascinating to observe that some insects have only four legs while others have six. For example, locusts are only four inches taller than butterflies. Jumping is done by insects using their front pairs.
They have gills
Many people are familiar with the fact some insects have gills. Gills are a way for insects to breathe. They are also a great way for insects to see the world around them. Many insects have multiple eyes. But some species have compound eye that can contain hundreds of different visual units. For example, caterpillars have 12 eyes and 30,000 eye ommatidia.
They have hair
If you're into bugs, you should know that they have hair on their bodies. Insects are the most diverse group of animals, and their sheer population makes them an interesting group to study. They play an important part in our environment, economy, and are fascinating to both humans as well as non-entomologists. Here are some fascinating facts about bugs, including how they jump and what they eat.
They also produce methane
Methane, also known as greenhouse gas, is released into atmosphere by termites and bugs. Methane is produced by termites and other insects in their guts. They are responsible for around 5 percent global emissions. Methane can be found in the atmosphere naturally, but human activities produce approximately 320,000,000 tons of methane annually. The largest source of methane emissions comes from fossil fuel industries, including the production of natural gas.
They have ommatidia
Insects are equipped with compound eyes, which consist of seven to 11 individual visual units. They are used for a variety of purposes. Some insects have more or less ommatidia. For example, the wingless silverfish has fewer than a hundred, while the dragonfly has about 30,000. It is interesting to note that male insects are more distinguishable than their female counterparts.
They have some of the most bizarre body parts
The most diverse group of organisms in the universe is insects. Insects not only contribute to many countries' economies, but are also fascinating for humans and other non-entomologists. Did you know, for instance, that grasshoppers have ears attached to their abdomens? A grasshopper's hind legs also have special organs that allow it to jump. In fact, the grasshopper can jump the length of a basketball court. The grasshoppers are not only amazing in their bodies, but they also sound like the first creatures to make sounds.
FAQ
How does your brain control your body's functions?
To ensure that they work together, messages are sent by the brain to other organs. Everything in your body is controlled and managed by your brain. It tells the stomach to digest food, and the lungs to breath air. It also tells your legs and arms to move.
Your brain is made up of billions upon billions of nerve cells that are connected together in groups called neuronal groups. Neurons communicate by sending electrical signals, called action potentials, on axons. Each neuron is covered by a cell membrane. Channels within the membrane allow ions such potassium and sodium to enter and leave the cells. The electric charge that causes the neuron's fire is created by ion movement.
Neurotransmitters, chemical substances that are released when a neuron fires. Neurotransmitters can bind to receptors at the second neuron. They open ions channels, allowing ions to move in and outside of the channel. This causes the second neuron to fire too.
Neurotransmitter releases occur when a presynaptic neurons receives an input from another neuron. An impulse travels along a synaptic link between the two neuron. The transmitter binds with the receptors of the postsynaptic nerve, activating the firing of the postsynaptic neurons.
They are vital for the communication between nerve cells. They coordinate brain activity among different parts.
Here are 5 fascinating facts about the liver
The liver is responsible of breaking down toxins and storing nutrients. It helps to regulate blood pressure and keep our bodies temperature stable.
What number of times have you heard someone say that they feel sluggish or heavy? These symptoms may indicate problems with the liver.
You may notice symptoms such as dark urine, yellowing skin and fatigue. These aren’t the only warning signs. If you experience any of them, make an appointment with your doctor immediately.
The liver is an important organ. It is an important organ that plays a vital role in detoxification.
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The average adult human liver weighs approximately 1,400 grams.
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At birth, a baby's liver is half the size of an adult. It can grow to four times the size of an infant's liver by the age 3.
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The liver is located below the ribs on the left-hand side of your abdomen.
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The liver has 16 main lobes, with many smaller lobules within the lobes.
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About 10 million red blood cells are found in the liver.
What is the most mysterious place on earth?
Antarctica is considered the most mysterious area on Earth.
This is why we find it so captivating. Because it's unlike any other place in the world.
It is remote, isolated, and extremely difficult to visit. There is much more to this place than meets the eyes.
These wild animals are also found in this natural wonder.
So let's explore how this remarkable destination became famous for its mystery.
Antarctica: The South Pole
Antarctica's name is a mystery. Some believe it is "land of the ice". Others believe it derives from Greek mythology.
Antarktis is the name Antarktis was given to an island in ancient Greece by Zeus' twin brothers. According to some legends, one of these twins was born in winter. Hence, the word antarctic.
Others believe the name was derived from the Greek words tropos, which means turn, and anti, meaning against. This would mean that the land was turned away by the sun.
Whatever the reason, Antarctica has always held a special fascination for people.
It is the coldest, windiest, driest and highest continent. It is too cold to support trees, plants, and animals.
Yet, the frozen desert is alive with life.
Here are about 90% of all the living creatures on Earth. About 50% of the world's plant and animal species can be found here.
What is it that makes Antarctica so unique? Here water freezes to ice and not evaporates into the atmosphere.
This causes large amounts of ice to float above ground.
These floating glaciers cover 80% of the continent. They're getting bigger every year.
The Antarctic Ice Sheet has grown 60 feet in the past 60 years.
The sea level could rise to 200 feet if the melting continues. This could lead to widespread flooding.
This does not mean that everyone is wrong. Some scientists believe that global warming can be beneficial. They say that as temperatures rise, the ice sheets might melt faster, causing floods that flush out tons of toxic chemicals from our soil and bodies.
Others warn that this theory sounds like something out of a science-fiction movie.
What is your most secretive community?
It may surprise you to hear the answer. This may make you feel uncomfortable as it challenges your perception of reality and the way we live. There is a reason this place exists and it's not as you might expect.
It was called the City of God by ancient Greeks. It was also called the City of Destruction in the Bible.
It's known in India as Kashi (Kashmir). It is also called Novgorod in Russia.
It is known as The Town That Disappeared in America.
A small community of 1200 people in western New York State vanished. A road sign pointing to the former location of the town was all that was left, except for a few bodies and cars.
This little town disappeared, leaving no clues about where it went or when. Some believe the earth swallowed them up. Others say it was destroyed in a meteorite collision. Others believe that aliens took it.
The residents of this once prosperous community believe that whatever happened, their town is not gone forever. They had just relocated to another town.
Even a website exists to help track down the disappearances of the lost city Zugspitz.
Then, where is it? It's in Switzerland.
Zugspitze lies on the border between Austria and Germany. The lake Lake Zugspitze is just beyond the mountain's summit.
It has always fascinated me that so many towns have disappeared, yet some still remain. Is it possible that some towns disappear and others are preserved? I decided to investigate.
I wanted to know more about the mysterious disappearing towns. What causes a community to disappear? How can one place become extinct?
It turns out that there are several theories about the phenomenon of vanishing towns. One theory says that a town disappears when all the buildings are demolished. Another theory says that the town just moves. Another theory suggests that the town has never existed.
There are many theories, but the truth is that thousands of towns around the world have been submerged by the earth. This video explores the history of these towns and examines their current state.
Statistics
- "It is estimated that 75% of people have at least mild gum disease, with the most common symptoms being bleeding when brushing, bad breath, and dark and swollen gums," Dr. Ron Baise, a London-based dentist, tells Romper. (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)
- 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)
- 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)
- 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)
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Hollywood Actors & Actresses with PhDs
Many prominent names include Oprah, Bill Gates. Steve Jobs. Bill Gates. Oprah. Winfrey. Michael Jordan. Barack Obama. Nikola Tesla and Marie Curie are among the many famous scientists.
Some celebrities had Ph.D. degrees, including actor Tom Hanks, singer Barbra Streisand, and actress Meryl Streep.
All these stars earned their doctorate from different universities around the world. Many of these celebrities went on and became successful entrepreneurs or business leaders after they received their PhDs.
Other actors and actresses with PhDs include:
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Actor David Schwimmer is a Columbia University Business School MBA. He was also an alumni of NYU's Tisch Schools of the Arts.
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Jennifer Aniston, an actress, graduated Dartmouth College in Massachusetts with a Bachelor of Science degree. Harvard University later awarded her her Master's in Organizational Behavior & Human Resources Management.
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Julia Roberts, an actress, studied Biology at Yale University and then received her Masters of Public Administration degree from Georgetown University.
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Actor Edward Norton graduated Brown University with a Bachelors of Fine Art. From Stanford University, he received his Doctorate of Molecular Biophysics & Biochemistry.
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Maggie Gyllenhaal was an actress who graduated from Barnard College with a Bachelor's degree in English Literature. She then received her Master of Social Work from Columbia University.
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Sarah Jessica Parker is an actor. She received her Bachelor of Arts Degree in Psychology from Wellesley College. Her master's degree is in clinical psychology from Columbia University.
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Sandra Bullock, actress, received her Bachelor of Arts degree at the University of California Berkeley. She continued on to UCLA for her Masters of Education.
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Reese Witherspoon is an actress who earned her Bachelor of Arts degree in Political Science from Tulane University. After that, she earned her Master of International Affairs at Tufts University's Fletcher School of Law and Diplomacy.
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Michelle Williams is an actor who graduated from Wesleyan University, where she received a Bachelors of Arts degree. She went on to receive her Master of Arts Degree in Psychology from Boston University.
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Actress Shailene Whiteley graduated from Brigham Young University in Hawaii with a Bachelor's degree in Arts. She then went to graduate school for her Master's in Environmental Studies from San Francisco State University.
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Will Smith is an actor who graduated from Howard University with his bachelor's degree as a Communications major. He then earned his Master of Business Administration from the Kellogg Graduate School of Management at Northwestern University.
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Queen Latifah, the actress, graduated with a Bachelors in Nursing from Michigan State University. From there, she received her Master of Public Hospital from the University of North Carolina.
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Amy Adams is an actor who graduated from Juilliard School in New York with a Bachelors of Music degree. From Manhattan School of Music she received her Master of Music.
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Halle Berry, an actress, graduated from American Conservatory Theater with a Bachelor of Fine Arts degree. Carnegie Mellon University conferred her Master of Fine Arts acting degree.
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Brittany Murphy is an actress who graduated from Santa Monica High School, where she received her Bachelor of Arts Degree (Theatre Arts). After that, she received her Masters of Fine Arts Acting at the New York Film Academy.