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⁣The purpose of the expository writing style is to enlighten or instruct. In other words, it means to present an idea or relevant discussion that helps explain or analyze information. Some of the most common examples of expository writing include scientific reports, academic essays and magazine articles

⁣Grade 10 English

The cl****ification system organises species into domain, kingdom, phylum, cl****, order, family, genus and finally species.
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<br>‘Kingdom is the second highest rank below the rank of domain in this sequence of cl****ification. It helps us to group, or cl****ify, species into different families so we can see how closely or not they are related.
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<br>Cl****ification attempts to impose a hierarchy on the complex and dynamic variety of life on Earth by describing how different species group together, and how related they are to one another or not.
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<br>There are 5 kingdoms: animals, plants, fungi, prokaryotes and protoctists. Each kingdom has chareristic features so that an organism can easily be ****igned to one of the kingdoms.
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<br>Animals are eukaryotic, multicellular and have no cell walls. They develop from a blastocyst (which is part of embryo development). They have both nervous and hormonal control systems. They are heterotrophic which means they eat stuff and have a digestive system. They are motile which means they move. Cell division, which enables growth, happens in tissues.
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<br>Plants are eukaryotic, and multicellular like animals. However, unlike animals they have cell walls, with cellulose in. They are autotrophic, which means they use photosynthesis to make their own energy from sunlight. Their growth is restricted to meristems - which is layers of dividing cells. They are non-motile, have a leaf gas exchange system and are waterproofed.
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<br>The Fungi kingdom are eukaryotes and can be multicellular like animals and plants but can also be unicellular such as yeast. They have cell walls like plants but have a substance called chitin rather than cellulose. They are heterotrophic and saprotrophic meaning they decompose - so they break things down, or are parasitic. The body of a fungus is composed of thin filaments called hyphae. And they secrete enzymes, do external digestion and then absorb the resulting nutrients.
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<br>The Protoctista kingdom are eukaryotes like animals and plants. They can be unicellular and multicellular, like the fungi. They have cell walls, sometimes with polysaccharides. They are autotrophic and heterotrophic.
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<br>The prokaryotes are unicellular, they lack the organelles that are seen in eukaryotes. They are typically really small: about 10μm in size. Much too small to see with the human eye. They have cell walls and they are autotrophic, using photosynthesis and chemosynthesis (without light) and they are heterotrophic. They divide by binary fission, not by mitosis.
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<br>So from this video you should know that Kingdoms break down into 5 groups (Prokaryotae, Protoctista, Fungi, Plantae Animalia), based upon different chareristics including whether they have cell walls, are eukaryotic or prokaryotic, and how they get nutrition.
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Written, Directed, Produced, Edited and Sung by Mitchell Moffit.
Based on the "Can-Can" music, by Offenbach.

LYRICS:

There's Hydrogen and Helium
Then Lithium, Beryllium
Boron, Carbon everywhere
Nitrogen all through the air

With Oxygen so you can breathe
And Fluorine for your pretty teeth
Neon to light up the signs
Sodium for salty times

Magnesium, Aluminium, Silicon
Phosphorus, then Sulfur, Chlorine and Argon
Pot****ium, and Calcium so you'll grow strong
Scandium, Titanium, Vanadium and Chromium and Manganese

CHORUS
This is the Periodic Table
Noble gas is stable
Halogens and Alkali react agressively
Each period will see new outer shells
While electrons are added moving to the right

Iron is the 26th
Then Cobalt, Nickel coins you get
Copper, Zinc and Gallium
Germanium and Arsenic

Selenium and Bromine film
While Krypton helps light up your room
Rubidium and Strontium then Yttrium, Zirconium

Niobium, Molybdenum, Technetium
Ruthenium, Rhodium, Palladium
Silver-ware then Cadmium and Indium
Tin-cans, Antimony then Tellurium and Iodine and Xenon and then Caesium and...

Barium is 56 and this is where the table splits
Where Lanthanides have just begun
Lanthanum, Cerium and Praseodymium

Neodymium's next too
Promethium, then 62's
Samarium, Europium, Gadolinium and Terbium
Dysprosium, Holmium, Erbium, Thulium
Ytterbium, Lutetium

Hafnium, Tantalum, Tungsten then we're on to
Rhenium, Osmium and Iridium
Platinum, Gold to make you rich till you grow old
Mercury to tell you when it's really cold

Thallium and Lead then Bismuth for your tummy
Polonium, Astatine would not be yummy
Radon, Francium will last a little time
Radium then Actinides at 89

REPEAT CHORUS

Actinium, Thorium, Protactinium
Uranium, Neptunium, Plutonium
Americium, Curium, Berkelium
Californium, Einsteinium, Fermium
Mendelevium, Nobelium, Lawrencium
Rutherfordium, Dubnium, Seaborgium
Bohrium, H****ium then Meitnerium
Darmstadtium, Roentgenium, Copernicium

Ununtrium, Flerovium
Ununpentium, Livermorium
Ununseptium, Ununoctium
And then we're done!!

⁣What are examples of silent letters?

Image result for Silent Letters
In English pronunciation, a silent letter—a term used informally—is a letter or letter combination of the alphabet that is usually not pronounced in a word. Examples include the b in subtle, the c in scissors, the g in design, the t in listen, and the gh in thought.

⁣Complete and incomplete metamorphosis are two types of growth forms in insects. The complete metamorphosis occurs through four stages: egg, larva, pupa, and adult. The incomplete metamorphosis occurs through three stages: egg, nymph, and adult. The pupa stage is not developed during incomplete metamorphosis.

⁣Grade 10 Mathematics

⁣Worms are members of several invertebrate phyla, including Platyhelminthes (flatworms), Annelida (segmented worms), Nemertea (ribbon worms), Nematoda (roundworms, pinworms, etc.), Sipuncula (peanutworms), Echiura (spoonworms), Acanthocephala (spiny-headed worms), Pogonophora (beardworms), and Chaetognatha (arrowworms).

4th grade science is fun with these review lesson videos from Homeschool Pop. This compilation features some of our most popular 4th grade science videos. We hope you enjoy them as much as we loved making them!

00:00 The human heart
5:19 Reptiles
10:46 Earthquakes
17:09 Plant parts and functions
27:40 Planets in our solar system
44:29 The human brain

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Thanks for watching this 4th grade science compilation learning video from Homeschool Pop! We hope to hear from you soon and we will see you next video!

Homeschool Pop Team



4th Grade Science Compilation

⁣Grade 8 Mathematics

⁣Grade 10 Mathematics

⁣A conjunction is a word that is used to connect words, phrases, and clauses. There are many conjunctions in the English language, but some common ones include and, or, but, because, for, if, and when. There are three basic types of conjunctions: coordinating, subordinating, and correlative.

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0:24 SI Unit of Velocity
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This HD dramatic video choreographed to powerful music introduces the viewer/student to the Science of Chemistry. It is designed as a motivational "trailer" to be shown by teachers in Chemistry, Biology and Physical Science cl****rooms in middle school, high school and college as a visual Introduction to the wonders of atoms and matter. See more of my videos at my channel: http://www.youtube.com/user/sfgregs?feature=mhum.

Subscribe to my channel for other video trailers in Biology, Chemistry, Earth Science, Physics and Astronomy. I will be releasing new ones periodically.


Please rate this video and feel free to comment. If you like it, please help me spread the word by posting links to it on your social media websites. The more students who can enjoy these dramatic videos, the better!

I wish to thank all the quality video and music producers whose postings enabled me to ****emble this video for educational use. I particularly want to thank the C****iopeia Project for their excellent visuals, and to teacher Shanna Collins for the inspiration to make the video.

Music is a mix of four pieces.

To best enjoy this video, view on a big screen and turn up your speakers. The music is powerful and dramatic!

I can customize this video to add your name or school name at the end credits, for a very modest fee. If interested, email me at "fsgregs@comcast.net".

Until recently, you were able to download my videos for free from my other video storage site (vimeo.com). Recently, however, they began charging a significant membership fee to enable that feature, so downloading from there is no longer available. However, you can search for and obtain free download addons for your browser that will allow you to download my videos from either YouTube or Vimeo.

⁣Grade 10 English

⁣Grade 10 Commerce

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SUMMARY: This karaoke-style music video provides a musical explanation of the structure of the cell membrane. This includes the structure of phospholipids, the key structural component of biological membranes, and how phospholipids interact with water to organize themselves into a phospholipid bilayer. The roles of membranes proteins, carbohydrates, and cholesterol is also discussed.

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Lyrics:

If you're in a cell's cytoplasm, heading outside,
Your last stop's a barrier, 8 nanometers wide,
The cell membrane: our subject for today
It's as basic to life as DNA

It's Selectively permeable, like a border patrol
of a country it maintains control.
Selecting what leaves or what gains entry
It's a guard, bouncer, watchman, patrolman or sentry.

But not just a guard, it sends signals in nerves
White blood cells use their membranes to eat germs like hors d'oeuvres,
Membranes have receptors, enzymes and junctions,
So what kinds of structure can have all these functions?

CHORUS
C-E double L, "Mem" B-R-A-N-E
Controlling transport selective permeability
Phospholipids, Carbohydrates, Proteins and Cholesterol
The Fluid Mosaic Bilayer in us all

So let's take a look at what makes up the membrane,
Phospholipids rule this domain,
In fact membrane structure emerges directly
from phospholipids' chemical properties.

There's a head and a tail on every phospholipid,
The tail's two long chain fatty acids
Bound to a glycerol, it's made to order
The tail's non-polar --hydrophobic-- fears water

The head's got a phosphate, it's charged negatively,
makes the head hydrophilic--plays in water happily
So tail avoids water while the head's attracted to it,
When phospholipids form the membrane that's how they do it.

Cause when phospholipids into water get submerged,
A phospholipid bilayer structure will emerge
The tails hang together in a water free zone,
Hear their hydrophobic moan, "water leave me alone!"

While the heads are sticking out touching all those H2Os
Tails in, heads out, it's how every membrane goes
Tails in, heads out, in a cellular sphere,
It's the bilayered basis of membranes everywhere.

CHORUS

But a cell membrane's not just a phospholipid scene
There's cholesterol, carbohydrates, lots of proteins.
In fact, membrane proteins have a presence so great,
that they often exceed the phospholipids by weight.

And all of these components are in constant motion,
Moving, mixing like a boiling potion,
Flowing like dancers in a party in Pasaic
That's why the membrane's thought of as a fluid mosaic.

Let's start with proteins since they're key in this mix.
Transmembrane proteins span the entire width.
Typically they're ports--think of channels or conveyors,
For things that don't go through the lipid bilayer.

Any protein embedded in the hydrophobic middle
Built right into the inside is considered integral
While peripheral proteins either hang on the exterior,
Or inside on the cytoplasmic interior.

Cholesterol keeps membranes flowing with ease,
In cold it keeps the lipids moving so they don't freeze,
In heat it slows the lipids down limiting their traveling,
Cholesterol: it keeps membranes from unraveling

Membrane carbohydrates work as markers or signs
So your immune system knows which flag your cells are flyin'
The blood types AB, O, and B and A
Are about the carbohydrates on red blood cell membranes.

CHORUS

⁣Adult animals that have soft, elongated, often tubelike bodies and that lack backbones are commonly called worms. Worms are so different from one another that zoologists do not cl****ify them together in a single group; they place them in about a dozen different and often unrelated taxonomic groups called phyla.

⁣Grade 10 Commerce