Today I Learn

08 Oct 2024 04:41

Are genes located on chromosomes?

In genetics, a locus (plural loci) is the specific location of a gene, DNA sequence, or position on a chromosome. Each chromosome carries many genes; humans' estimated 'haploid' protein coding genes are 20,000-25,000, on the 23 different chromosomes.

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06 Oct 2024 03:46

Which planet has the hottest surface temperature?

Venus, the second closest plant to the Sun, has the highest average temperatures of any planet in our Solar System, regularly reaching temperatures over 460°C. Venus is so hot because of its proximity to the Sun and its thick atmosphere.

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04 Oct 2024 08:13

Can babies breathe through their mouths?

Newborns are "obligate nose breathers." This means they can't breathe through their mouths in the first few months of life. Because babies have small nasal passages, they sound stuffy when they breathe.

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01 Oct 2024 07:45

Is blue eyes a mutation?

New research shows that people with blue eyes have a single, common ancestor. A team at the University of Copenhagen have tracked down a genetic mutation which took place 6-10,000 years ago and is the cause of the eye colour of all blue-eyed humans alive on the planet today.

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30 Sep 2024 10:09

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29 Sep 2024 09:43

Do starfish have a brain?

The nervous system of the starfish is very simple...there is no brain and there are not even any ganglia to coordinate movement. The nervous system is characterized by a nerve ring that surrounds the mouth. A radial nerve branches off of the nerve ring and extends to each arm.

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27 Sep 2024 07:02

Do sea otters have pockets?

Under each foreleg, the sea otter has a loose pouch of skin that extends across the chest. In this pouch (preferentially the left one), the animal stores collected food to bring to the surface. This pouch also holds a rock, unique to the otter, that is used to break open shellfish and clams.

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22 Sep 2024 09:16

What causes dimples in the cheeks?

Dimples are caused by an abnormally short facial muscle. The zygomaticus major, a facial muscle, is attached to the skin of your cheeks. Dimples appear when the muscle pulls hard enough on your cheeks to cause visible indentations on your face. This usually occurs when we speak or smile, when the muscle is contracting.

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19 Sep 2024 04:48

Do male seahorses get pregnant?

In sea horses, the males become pregnant. Their mating involves the female inserting her oviduct into the male's brooding pouch. She does this several times for short intervals to avoid exhaustion. In between the female rests while the male contorts himself to try to get the eggs in place in his brood pouch.

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06 Sep 2024 10:29

Why do they add iodine to salt?

Iodised salt (also spelled iodized salt) is table salt mixed with a minute amount of various salts of the element iodine. The ingestion of iodide prevents iodine deficiency. Worldwide, iodine deficiency affects about two billion people and is the leading preventable cause of intellectual and developmental disabilities.

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31 Aug 2024 06:59

What organs can regenerate themselves?

The liver is the only human internal organ capable of natural regeneration of lost tissue; as little as 25% of a liver can regenerate into a whole liver. Regeneration is very rapid. The liver will return to a normal size in one to two weeks following the removal of greater than 50% of the liver by mass.

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28 Aug 2024 14:10

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Today I Learn

24 Aug 2024 05:37

What animal can live after being frozen?

Wood Frogs Can Survive Being Frozen Solid, Over and Over. Every autumn, the sanest animals head south, fleeing the encroaching winter lest they freeze to death or get torn apart by yetis.

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20 Aug 2024 04:27

How many different kinds of animals are there in the world?

According to World Book Encyclopedia, "So far scientists have named and classified more than 1 1/2 million animals. Over half of these are types of insects and other species are discovered each year. Scientists believe there may be from 2 million to as many as 50 million kinds of animals alive today."

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14 Aug 2024 06:34

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07 Oct 2024 05:39

How many moons does Mars have?

Mars has two moons, Phobos and Deimos, which are thought to be captured asteroids. Both satellites were discovered in 1877 by Asaph Hall and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology, accompanied their father Ares, god of war, into battle.

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05 Oct 2024 02:37

What countries border the Black Sea?

The Black Sea is an inland sea located between far-southeastern Europe and the far-western edges of the continent of Asia and the country of Turkey. It's bordered by Turkey, and by the countries of Bulgaria, Romania, Ukraine, Russia and Georgia.

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03 Oct 2024 03:55

Can you go blind from looking at a solar eclipse?

While it may be tempting to brush off warnings against looking up at this eclipse bare-eyed, don't: The light of an eclipse really can damage your eyes — though warnings of total blindness are likely overstated. The condition is called solar retinopathy, and it occurs when bright light from the sun floods the retina.

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30 Sep 2024 10:11

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30 Sep 2024 10:07

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28 Sep 2024 07:55

What gland is responsible for regulating metabolism?

The thyroid gland regulates the body's metabolism, while parathyroid glands regulate calcium levels and have no effect on metabolism.

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26 Sep 2024 06:18

How many bones does a horse have?

Generally, the horse has 205 bones (54 vertebral column, 36 ribs, 1 sternum, 34 skull, 40 front legs, 40 hindlegs). The number of tail coccygeal vertebrae is usually 18 but can also vary.

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21 Sep 2024 05:54

Who discovered the vaccine for polio?

Jonas Salk. Jonas Edward Salk (October 28, 1914 – June 23, 1995) was an American medical researcher and virologist. He discovered and developed the first successful inactivated polio vaccine. He was born in New York City to Jewish parents.

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13 Sep 2024 08:18

Why does your body get the chills?

Chills (shivering) may occur at the beginning of an infection and are usually associated with a fever. Chills are caused by rapid muscle contraction and relaxation. They are the body's way of producing heat when it feels cold. Chills often predict the coming of a fever or an increase in the body's core temperature.

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05 Sep 2024 05:01

What color is an insect's blood?

Insect blood, which is called hemolymph, contains various nutrients, hormones, and other things, but does not have any red blood cells or hemoglobin. That is why it is not red in color, and instead is rather clear.

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30 Aug 2024 08:16

What diseases can you get from lack of vitamin C?

Scurvy is a disease caused by a diet that lacks vitamin C (ascorbic acid). Patients develop anemia, debility, exhaustion, edema (swelling) in some parts of the body, and sometimes ulceration of the gums and loss of teeth. The name scurvy comes from the Latin scorbutus.

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28 Aug 2024 05:39

What continent has the most deserts?

Antarctica, on average, is the coldest, driest, and windiest continent, and has the highest average elevation of all the continents. Antarctica is considered a desert, with annual precipitation of only 200 mm (8 inches) along the coast and far less inland.

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23 Aug 2024 03:44

What is the dew point?

Dew point temperature is defined as the temperature to which the air would have to cool (at constant pressure and constant water vapor content) in order to reach saturation. A state of saturation exists when the air is holding the maximum amount of water vapor possible at the existing temperature and pressure.

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15 Aug 2024 04:18

Is light an energy?

Electromagnetic energy is the same as radiation or light energy. This type of kinetic energy can take the form of visible light waves, like the light from a candle or a light bulb, or invisible waves, like radio waves, microwaves, x-rays and gamma rays.

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14 Aug 2024 06:33

Happy Independence Day 2024