The Golgi body is vital for the health of a cell. It is sometimes described as a post office, or a distribution center because it repackages proteins and chemicals and ships them to locations in the cell.
The Golgi body which is also called the Golgi apparatus is found in eukaryotic cells.
The Golgi body receives proteins from the rough er and repackages the proteins and chemicals into vesicles that are sent out to three locations. Some vesicles become lysosomes, others travel to the cell membrane and provide proteins for the membrane, and other vesicles travel outside the cell-like vesicles containing insulin so it can be released into the bloodstream.

Learn how to solve 60% of 40 and other percent problems. I solve the following percent of problems.
20% of 60
20% of 40
15% of 40
15% of 60

A conductor allows electrons to move freely and an insulator blocks their movement. In this video, I test several different objects to see if they are insulators or conductors.
For example, is a pickle a conductor or an insulator?
I answer these questions by hooking up an electrical current.
Is copper a conductor?
Is wood an insulator?
Plastic Conductor or insulator?
Aluminum Insulator or not?

Biology MineralsIn this video I will discuss 15 important minerals of the human body. A mineral is an inorganic nutrient which means it lacks carbon. Minerals build cells, take part in chemical reactions, send nerve impulses, and carry oxygen. Your body cannot produce any of the minerals that it needs. Instead, you must get minerals from the foods you eat.
Minerals are one of the four groups of essential nutrients, the others of which are vitamins, essential fatty acids, and essential amino acids.
Macrominerals are used in large quantities
Trace minerals are used in very small amounts
List of 15 minerals covered
Potassium
Chlorine
Manganese
Copper
Iodine
Chromium
Molybdenum
Selenium
Cobalt

Learn how many moons each Planet has. There are over 200 moons that orbit the Planets and Asteroids. Here is list of how many moons the planets have.
Mercury 0
Venus 0
Earth 1
Mars
Jupiter 79
Saturn 82
Uranus 27
Neptune 14

Digestion begins in the oral cavity which we normally call the mouth. The mouth is responsible for mechanical and chemical digestion and prepares the food for digestion. I explain the role of the mouth in digesting food. The mouth has a very important function in digesting food..
The mouth has 32 teeth that help with mechanical digestion and amylase that helps with chemical digestion.

Learn how to find the area of a square using the diagonal which creates a 45 45 90 triangle. The special rules of a 45 45 90 triangle can be used to find the side length.

Biodiversity and ecosystems.
Biodiversity is the variety of life in an area that is determined by the number of species in that area. In simple terms “ Biodiversity is the number of different individuals and life forms in an area.
As biodiversity increases so do the health of the ecosystem increases.
Think of it as if you were running a business.
You want your business to be healthy and make money. Imagine you sell shirts. If you only sold a black shirt with a heart you are limited and if these shirts go out of style you are out of business. If you have a variety of shirts as fashion changes you are better able to adapt to these changes and continue to make money.
As biodiversity increases the ecosystem has a greater ability to adapt to changes.
and a healthy ecosystem has a greater chance of recovering from disasters.
Biodiversity can be broken down into three types
Genetic diversity
Species diversity
Ecosystem diversity

The atmosphere can be divided into four individuals layers separated by changes in air temperature. These layers are the troposphere, stratosphere, mesosphere, and thermosphere.

Each layer is classified according to the temperature. As you gain elevation in the troposphere the temperature drops. The temperature range is from around 15 degrees celsius to negative 45 to 50 celsius at the top
The temperature of the stratosphere actually gets warmer with elevation and ranges from minus 45 to 50 degrees celsius at the bottom to 0 degrees celsius at the top.
The mesosphere is similar to the troposphere and the temperature decreases with elevation.
The temperature ranges from 0 degrees celsius to negative 90 degrees celsius at the top.
Finally, the thermosphere gets warmer with elevation. The temperature ranges from negative 90 degrees at the bottom to over 1500 degrees celsius at the very top

As you move from the troposphere to the thermosphere the atmospheric pressure decreases.
As you go up in elevation the atmospheric pressure decreases and as you down in elevation the atmospheric pressure increases.
In 2012 Felix Baumgartner completed a freefall parachute jump from the stratosphere. During this jump, he reached speeds of over 800 miles per hour and broke the sound barrier. He was able to reach speed because the atmospheric is so thin there was very little friction to slow him down.

Use this simple technique to find the lowest common denominator of any fractions. If you can create a factor tree you can easily find the common denominator

Learn how Peroxisomes help keep cells alive. Peroxisomes are sperical organelles found in eukaryotic cells that break down fatty acids, convert hydrogen peroxide, and protect the cell from ROSs.

Nervous System controls the human body by sending electrical signal through out your body.
The nervous system can be divided into the central nervous system and the peripheral nervous system.

The spleen is located in the upper left abdominal cavity, just beneath the diaphragm, and next to the stomach. It is similar to a lymph node in shape and structure but it is much larger.
An easy way to remember the anatomy of the spleen is the 1×3×5×7×9×11 rule. The spleen is 1" by 3" by 5", weighs approximately 7 oz, and lies between the 9th and 11th ribs on the left-hand side.
Your spleen is considered part of the lymphatic system.

the spleen consists of two types of tissue called white pulp and red pulp. The white pulp is lymphatic tissue consisting mainly of lymphocytes around arteries. The red pulp consists of sinuses filled with blood and lymphatic cells,

As blood is filtered through the spleen old and damaged red blood cells are removed from the blood. In addition, the spleen produces lymphocytes in response to invading pathogens found in the blood. The spleen is like a large lymph node that filters blood instead of lymph looking for invaders like harmful bacteria. White blood cells stored in the spleen help remove and eliminate these invaders. It is particularly helpful when fighting meningitis and pneumonia

The spleen also stores blood. The sinuses in the red pulp of the spleen are filled with blood and can be used in case of an emergency.

You can live without your spleen. your immune system won’t shut down without a spleen, but it won’t operate as efficiently.