Parasitism Examples

Thursday, April 11, 2019

Examples of parasitism This innocent looking bird called a cowbird lays her eggs in another birds nest and expects the unsuspecting mom to raise their young. If this bird kicks her eggs out of the nest the cowbird may destroy her nest. This is just one example of parasitism. Parasitism is a symbiotic relationship in which one organism benefits and another organism is harmed and in some cases may die.
Parasitism is a symbiotic relationship between the different organisms.
Let’s take a look at examples of parasitism. Mosquitoes These annoying pests will show up at most picnics and start trying to have a meal at your expense. mosquitoes are carriers, or vectors, for some of humanity’s most deadly illnesses, and they are public enemy number one in the fight against global infectious disease. Mosquito-borne diseases cause millions of deaths worldwide In a similar fashion, ticks will do the same to you, dogs, livestock. The latch on to their host and start eating. Ticks can infect their host with many diseases including Lyme disease. Many worms are parasitic. Leech A leech is a segmented worm that attaches to a host like you and gets a meal from their blood. They secrete a chemical that actually prevents the blood from clotting. If present in great numbers on a host, these can be debilitating, and in extreme cases, cause death. E. coli There are hundreds of different types, or strains, of the bacteria E. coli (Escherichia coli). Most of these are harmless and live in the intestines of healthy people and animals. But some strains of E. coli make a strong toxin that can cause a severe infection. Mistletoe This plant you will see high in trees is actually a parasite. Mistletoe will attach to their host tree or shrub and then extract water and nutrients from the host plant. Albino redweed An 'albino'[a] redwood is a redwood tree which is unable to produce chlorophyll, and so has white needles instead of the normal green. It survives by obtaining sugar through the connections between its roots and those of neighboring normal redwood Parasitoid wasps lay their eggs inside or on the bodies of the host such as arthropods or caterpillars. the offspring eventually devour their way out causing the death of these hosts.

Factors of 26

Tuesday, April 9, 2019

The factors of 26 = 1,2,13,26

The prime factors of 26 = 2 and 13

Why Chattanooga is a great place to visit

Monday, April 8, 2019

Chattanooga is a mid-sized town located among the mountains in Tennessee. Chattanooga is a great town to visit and explore One reason I enjoy Chattanooga so much is the friendly vibe it has. It just feels like the people and the city want you to visit. Little things like a free shuttle, it is very clean, and the people are friendly.

In addition, there are great historical buildings to see lots of restaurants to visit and explore and it is very bike and pedestrian friendly. I recently stayed for two days in the city and didn't get in my car once. We walked or rode a bike everywhere. Let’s take a look at some things to do in Chattanooga

Tennessee Aquarium

The city has an amazing aquarium. In fact, it is two aquariums that sit beside each other. Freshwater and saltwater. I have visited the aquarium over 20 times and see something new every time. It also sits right next to the I max so you can watch an  I max movie as part of your aquarium tour.

Bike Sharing

Next, rent a bike. For 8 dollars you can rent a bike and ride them from one station to another. There are over 40 stations which allow you to see the entire city. This is fun

Chattanooga Lookouts

The Chattanooga Lookouts is a minor league team of the Cincinnati Reds. They play from April to early September. It is a relaxed minor league baseball atmosphere.

Creative Discovery Museum

If you have younger children they will love the Creative Discovery Museum. The museum contains art, music, and science areas, along with a water-themed zone called RiverPlay, a rooftop exhibit, and an inventor's workshop,


I like to walk around cities so I love the Riverwalk. The sidewalk runs right next to the river and is very pretty. You can also take a riverboat tour. The Southern Bell has sightseeing tours and daily tours.

Walnut Street Bridge

You can also walk across the Walnut Street bridge. The bridge was opened in 1917 but now allows only bike and foot traffic.
Once you cross the bridge you can go to Coolidge park The park has large fields, a carousel, and a great sidewalk by the river. This is a great place to eat lunch, play frisbee, or just relax

You can also visit the zoo
 The Chattanooga Zoo is located inside Warner Park. Warner Park has a small loop you can run or walk on and a nice playground for young children. The Zoo is growing and I saw lots of excited children. The zoo has a nice petting area for younger children

There are lots of local places to eat like the cupcake bakery or even see a movie if the weather turns nasty.

In addition, you can drive 15 to 20 minutes to raccoon mountains, visit caverns, or go to lookout mountain.

Types of Rocks Igneous-Sedimentary-Metamorphic Rocks

Friday, March 29, 2019

Types of Rocks

Rocks are all around us. They make up the crust of the Earth and are found on the surface of the Earth.
Rocks can be classified according to how they are formed.

Igneous rocks are formed from rock that has melted and becomes a liquid rock that cools.
Sedimentary rocks form from deposits that build up over time.
Metamorphic rocks form from other rocks when exposed to heat and pressure.

Igneous rocks form when heat from inside the earth melt rock. This molten rock can cool inside the earth or on the earth's surface.
Intrusive igneous rocks cool inside the earth and generally have medium to large crystals.
Extrusive igneous rocks cool on the earths surface and usually have smaller crystals.
Let's review a couple of common igneous rocks.

Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. They form from deposits that accumulate on the Earth's surface or under the ocean. The particles that form a sedimentary rock are called sediment and may be composed of minerals or organic matter.

Sedimentary rocks can be subdivided into four groups based on the processes responsible for their formation: clastic sedimentary rocks which form from fragments of pre-existing rocks
Chemical sedimentary rocks form by precipitation of minerals from water. Precipitation is when dissolved materials come out of the water, and organic sedimentary rocks such as coal, and some limestones, which form from the accumulation of plant or animal debris.

Clastic sedimentary rocks are subdivided according to the dominant particle size.
These particle sizes are ranked from smallest to largest
Clay is the smallest then silt  Sand Gravel pebble Boulder

Shale is a fine-grained, clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals and silt-sized particles of other minerals, especially quartz and calcite.
Shale is very fine grained

Sandstone is a clastic sedimentary rock composed of sand-sized grains of mineral, rock, or organic material. It also contains a cementing material that binds the sand grains together Sandstone is one of the most common types of sedimentary rock and is found in sedimentary basins throughout the world.

A conglomerate rock is a coarse-grained clastic sedimentary rock that is composed of pebbles, cobbles, and boulders. The space between the clasts is generally filled with smaller particles and calcite or quartz cement that binds the rock together

Limestone is an organic sedimentary rock that is often composed of the skeletal fragments of marine organisms such as coral. About 10% of sedimentary rocks are limestones.

Metamorphic rocks are formed from other rocks that are exposed to heat and pressure. Metamorphic rocks do not melt but the heat and pressure change igneous,sedimentary and even other metamorphic rocks into a new type of rock.
Foliated metamorphic rocks have their crystal in stripes.

Difference between Renewable and Nonrenewable Resources

Sunday, March 24, 2019

Renewable and Nonrenewable Resources

A Natural resource is a natural material that is used by humans
Examples include water, oil, wood from trees, and coal.
Many of these resources are changed into products that make our life more comfortable or convenient  pause 14 seconds
Natural resources can be classified as renewable or nonrenewable
A renewable resource can be replaced at the same rate in which the resource is used

Common renewable resources 
Solar, like solar panels converting solar energy into electricity.
The wind can turn turbines for electricity.
Hydroelectric which involves moving water turning a turbine to produce electricity.
Geothermal, which involves capturing underground steam that flows to a turbine to produce electricity.
Biomass which involves plants and poop burned to produce electricity.

Air and water are renewable natural resources too. They don't regrow like trees But, they are always being renewed. They move in cycles.
Remember renewable resources can regrow or be replaced within a person's lifespan.

A nonrenewable resource is a resource that forms at a rate that is much slower than the rate that it is formed. Coal is an example. It takes millions of years to create coal and once it is used up it is no longer available
You can use CON to remember three popular nonrenewable resources.
This stands for
Natural Gas

Nuclear Fuel is also a nonrenewable resource. Uranium 235 which is used in nuclear power plants is found in a finite amount.
Minerals, used for making metals, are also nonrenewable natural resources.
For example, steel which is used in making buildings is made of iron ore combined with carbon.
The iron ore is mined from the earth and is a limited resource.
Nonrenewable natural resources are things that take longer than a person's lifespan to be replaced. In fact, they can take millions of years to form.

Because many important resources are limited we can all reduce, reuse, and recycle!
For example, turn off the lights when you are not in a room. This will reduce the use of fossil fuel used to make electricity.
Ride your bicycle and walk more, to reduce the amount of gasoline used to transport you.
You can reuse and recycle Things like plastic jugs, jars, paper, and paper bags
Each time you reuse something, you conserve the natural resources that would have been used to make new ones.

Items that can be easily recycled include glass, some plastics, paper, cardboard, aluminum, and steel.


Playlist Renewable Resources

Types of Epithelial Tissue and helpful resources

Types of Epithelial Tissue

Our skin and inside linings or organs are made up of epithelial tissue. These tissues line, cover and help organize your body.
Epithelial tissues line cavities and cover surfaces of vessels and organs.
They protect us from the outside world, make up the lining of the stomach and intestine, help the kidney filter blood and form glands and their many secretions.
Epithelial tissues do not have blood vessels but can soak up nutrients from blood vessels in connective tissue underneath. These tissues are also very good at regeneration.

They also help protect us from sunlight and pathogens they're
involved in secretion of sweat, hormones and even mucus they also are
involved in absorption in the stomach and in the lungs and the absorption of oxygen and co2 epithelial tissues are also important in sensation and how we touch and feel our
Epithelial tissues are divided into several different types and are
classified by both their shape and the number.

Squamous tissues are like pancakes because their width is greater than their height.
You will find these in the lungs and the blood vessels.

Cuboidal tissues have a width and height which is the same, which creates a shape like a cube.
Many times you find these tissues in ducts and secretory portions of glands and in kidney tubules.

Columnar tissues are just like a column because their height is greater than their width.
You find these in the digestive tract and possibly the trachea.

Epithelial tissues can also be classified by their number.
Simple epithelium tissue creates a single layer of cells.
Stratified epithelium tissues are stacked up cell layers.

Additional Resources for Epithelial Tissues

Types of tissues playlist of YouTube videos

Helpful webpage with a nice chart of Epithelial tissue that has a picture, location, and function of the types of Epithelial tissue.

Epithelial Chart

Difference Between Epithelial and Connective Tissue

Histology Virtual Lab - Epithelial Tissues

Histology or Body Tissues Illustrated Notes
Note: This is a TPT activity and is not free. I have no association with the resource, however, it is a great resource.

Factors of 21

Thursday, March 21, 2019

Learn to find the factors of the number 21. The number 21 is a composite number, as a result, it is divisible by numbers other than itself and 1.

The factors of 21 are 1,3,7,21

The prime factors are 3 and 7

There are shortcuts that help you determine if a number is divisible by another. For example, if a number ends in zero or is even then it is divisible by 2. You can download this chart to learn these rules.

Divisibility Rules Chart

Finding factors playlist
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